Q: What is the sum of all factors of the number 1,211,139 excluding 1,211,139?
A: 642,301
The factors of the number 1,211,139 are: 1, 3, 9, 27, 31, 93, 279, 837, 1447, 4341, 13023, 39069, 44857, 134571, 403713, 1211139.
If you add them up, you will get the total of 1,211,781. Now subtract 1,211,139 to get 642,301