Q: What is the sum of all factors of the number 425,901 excluding 425,901?
A: 261,843
The factors of the number 425,901 are: 1, 3, 7, 17, 21, 51, 119, 357, 1193, 3579, 8351, 20281, 25053, 60843, 141967, 425901.
If you add them up, you will get the total of 426,162. Now subtract 425,901 to get 261,843