Q: What is the sum of all factors of the number 1,213,545 excluding 1,213,545?
A: 842,775
The factors of the number 1,213,545 are: 1, 3, 5, 15, 17, 51, 85, 255, 4759, 14277, 23795, 71385, 80903, 242709, 404515, 1213545.
If you add them up, you will get the total of 1,214,387. Now subtract 1,213,545 to get 842,775