Q: What is the sum of all factors of the number 977,991 excluding 977,991?
A: 539,121
The factors of the number 977,991 are: 1, 3, 7, 21, 49, 147, 6653, 19959, 46571, 139713, 325997, 977991.
If you add them up, you will get the total of 978,530. Now subtract 977,991 to get 539,121