Q: What is the sum of all factors of the number 311,605,563 excluding 311,605,563?

A: 142,001,349

Why is 142,001,349 the sum of all factors of 311,605,563, excluding 311,605,563?

The factors of the number 311,605,563 are: 1, 3, 17, 43, 51, 129, 151, 453, 731, 941, 2193, 2567, 2823, 6493, 7701, 15997, 19479, 40463, 47991, 110381, 121389, 142091, 331143, 426273, 687871, 2063613, 2415547, 6109913, 7246641, 18329739, 103868521, 311605563.

If you add them up, you will get the total of 311,605,705. Now subtract 311,605,563 to get 142,001,349