Q: What is the sum of all factors of the number 100,989 excluding 100,989?
A: 69,441
The factors of the number 100,989 are: 1, 3, 7, 9, 21, 49, 63, 147, 229, 441, 687, 1603, 2061, 4809, 11221, 14427, 33663, 100989.
If you add them up, you will get the total of 101,058. Now subtract 100,989 to get 69,441