Convert micro four third to aps-c focal length

crop factor for 35mm/ full frame camera is assumed to be 1.
in micro four third, the crop factor is 2 ( half size of full frame).
in aps-c, crop factor nikon DX is 1.5, and canon DX is 1.6.
converting focal length micro four third to aps-c would be
nikon, 2/1.5 x focal length of micro four third
canon, 2/1.6 x focal length of micro four third.

in short,
focal length of micro four third lens can be viewed like x1.3333 in aps-c for nikon, and
x 1.25 in nikon.

example, m.zuiko 17mm, will look like 22.6mm (17x1.3333) in nikon DX camera.