The white fluffy ones are either mealybugs or soft scale.
The yellow/tan round ones look like the armor of hard scale.

You can remove the immediate infestation of soft scale by giving the plant a good shower with moderate water current. A garden hose with an adjustable nozzle would work best so you can adjust the velocity and size of the cone.
Make sure you wash the plant away from any other plants to prevent the insects from being splashed into the other plants. Washing it over a sink or a garden drain would be best since the insects will be flushed down the sewer and have little chance of climbing back out. (Wash it over the neighbor's fence if you have to )

After that, you will need to perform the standard routines to eliminate the armored scale and any eggs that the soft/hard scales may have deposited in the plant and potting mix.

1. Insecticidal soap/horticultural soap/home made brew (Spray entire plant) and let it soak into the potting mix.
2. Neem Oil - again spray the whole plant and let it soak into the potting mix.
3. If you can repot and use fresh mix, that would eliminate the need to sanitize the old potting mix and you get rid of any eggs that would have been hiding there.

Another option would be a systemic insecticide - but I personally try to avoid any poisons in the garden since I have a toddler who always follows me around the GH touching everything.

~John