Q: What is the sum of all factors of the number 153,909 excluding 153,909?
A: 105,441
The factors of the number 153,909 are: 1, 3, 7, 9, 21, 49, 63, 147, 349, 441, 1047, 2443, 3141, 7329, 17101, 21987, 51303, 153909.
If you add them up, you will get the total of 154,014. Now subtract 153,909 to get 105,441