Q: What is the sum of all factors of the number 1,215,861 excluding 1,215,861?
A: 405,291
The factors of the number 1,215,861 are: 1, 3, 405287, 1215861.
If you add them up, you will get the total of 1,216,266. Now subtract 1,215,861 to get 405,291