Q: What is the sum of all factors of the number 247,989 excluding 247,989?
A: 139,211
The factors of the number 247,989 are: 1, 3, 7, 21, 49, 147, 241, 343, 723, 1029, 1687, 5061, 11809, 35427, 82663, 247989.
If you add them up, you will get the total of 248,128. Now subtract 247,989 to get 139,211