Q: What is the sum of all factors of the number 1,261,839 excluding 1,261,839?
A: 420,617
The factors of the number 1,261,839 are: 1, 3, 420613, 1261839.
If you add them up, you will get the total of 1,262,259. Now subtract 1,261,839 to get 420,617