Q: What is the sum of all factors of the number 135,399 excluding 135,399?
A: 63,569
The factors of the number 135,399 are: 1, 3, 11, 33, 121, 363, 373, 1119, 4103, 12309, 45133, 135399.
If you add them up, you will get the total of 135,462. Now subtract 135,399 to get 63,569