ARGB Valuet back to R, G, and B value?

I know that to convert an R, G, and a B value to an ARGB integer value, I have to do:

argb=(b Or (g Shl 8) Or (r Shl 16) Or ($ff000000))

But what if I need the ARGB value back to seperate R, G, and B value?

Thanks!