Q: What is the sum of all factors of the number 256,362,771 excluding 256,362,771?

A: 158,453,997

Why is 158,453,997 the sum of all factors of 256,362,771, excluding 256,362,771?

The factors of the number 256,362,771 are: 1, 3, 7, 17, 21, 51, 119, 357, 443, 1329, 1621, 3101, 4863, 7531, 9303, 11347, 22593, 27557, 34041, 52717, 82671, 158151, 192899, 578697, 718103, 2154309, 5026721, 12207751, 15080163, 36623253, 85454257, 256362771.

If you add them up, you will get the total of 256,362,929. Now subtract 256,362,771 to get 158,453,997