It does look like Kalanchoe tomentosa, but it is in very poor shape. Aerial roots are not much problem, but plant is really suffering from lack of light. It is also potted in wrong soil and way too deep inside the pot. Plantlets growing from some of the fallen leaves are normal - that is one way how this plant propagates. You can save it by using better potting mix, and rooting the cuttings. Plant needs to have leaves growing much closer together. Even tiny plantlets are way too etiolated - all of it needs much better light.

If my plant, I would get new mix; make cuttings and try to root them. They need to be kept dry for a while, and kept in less light for a bit that should be slowly increased. Also, new plantlets can be potted up in new mix and they need better light to grow. Make sure you acclimatize them to more light, or they could burn.