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It is not possible to known the meaning of life in all ways possible. However, according to the "Hitchhiker's Guide to the Galaxy", the meaning of life is simply 42.
4
16/4=4 and 16/8=2
The factor pairs of 16 are (16,1)(8,2)(4,4). That's three ways to divide 16 evenly.
There are 18*17*16/6 = 816 of them!