Q: What is the sum of all factors of the number 121,989 excluding 121,989?
A: 70,139
The factors of the number 121,989 are: 1, 3, 7, 21, 37, 111, 157, 259, 471, 777, 1099, 3297, 5809, 17427, 40663, 121989.
If you add them up, you will get the total of 122,059. Now subtract 121,989 to get 70,139