276→396→696→1104→1872→3770→3790→
→3050→2716→2772→…
but no one knows exactly where it ends up.
It might well be that the reader would like to explore a little on their own, in which case I should let you in on the secret of how to calculate the so-called aliquotfunction a(n)from the prime factorization of n–take the product of all terms(pk+1-1)/(p-1),where pk is the highest prime power of the prime p that divides n,and then subtract n itself. For example,276=22×3×23 and so
