Q: What is the sum of all factors of the number 521,402,121 excluding 521,402,121?
A: 276,036,651
The factors of the number 521,402,121 are: 1, 3, 9, 17, 51, 153, 3407857, 10223571, 30670713, 57933569, 173800707, 521402121.
If you add them up, you will get the total of 521,402,397. Now subtract 521,402,121 to get 276,036,651