Q: What is the sum of all factors of the number 1,215,503 excluding 1,215,503?
A: 11,905
The factors of the number 1,215,503 are: 1, 103, 11801, 1215503.
If you add them up, you will get the total of 1,215,514. Now subtract 1,215,503 to get 11,905