Q: What is the sum of all factors of the number 123,981 excluding 123,981?
A: 82,323
The factors of the number 123,981 are: 1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 289, 429, 561, 663, 867, 2431, 3179, 3757, 7293, 9537, 11271, 41327, 123981.
If you add them up, you will get the total of 124,063. Now subtract 123,981 to get 82,323