Q: What is the sum of all factors of the number 1,218,639 excluding 1,218,639?
A: 411,873
The factors of the number 1,218,639 are: 1, 3, 401, 1013, 1203, 3039, 406213, 1218639.
If you add them up, you will get the total of 1,219,050. Now subtract 1,218,639 to get 411,873