Q: What is the sum of all factors of the number 1,247,289 excluding 1,247,289?
A: 421,671
The factors of the number 1,247,289 are: 1, 3, 379, 1097, 1137, 3291, 415763, 1247289.
If you add them up, you will get the total of 1,247,710. Now subtract 1,247,289 to get 421,671