Q: What is the sum of all factors of the number 1,180,221 excluding 1,180,221?
A: 661,443
The factors of the number 1,180,221 are: 1, 3, 7, 21, 43, 129, 301, 903, 1307, 3921, 9149, 27447, 56201, 168603, 393407, 1180221.
If you add them up, you will get the total of 1,180,882. Now subtract 1,180,221 to get 661,443