Q: What is the sum of all factors of the number 20,215,737 excluding 20,215,737?

A: 12,480,399

Why is 12,480,399 the sum of all factors of 20,215,737, excluding 20,215,737?

The factors of the number 20,215,737 are: 1, 3, 9, 17, 27, 51, 53, 81, 153, 159, 277, 459, 477, 831, 901, 1377, 1431, 2493, 2703, 4293, 4709, 7479, 8109, 14127, 14681, 22437, 24327, 42381, 44043, 72981, 127143, 132129, 249577, 381429, 396387, 748731, 1189161, 2246193, 6738579, 20215737.

If you add them up, you will get the total of 20,215,749. Now subtract 20,215,737 to get 12,480,399