Q: What is the sum of all factors of the number 1,290,421 excluding 1,290,421?
A: 137,483
The factors of the number 1,290,421 are: 1, 11, 73, 803, 1607, 17677, 117311, 1290421.
If you add them up, you will get the total of 1,290,558. Now subtract 1,290,421 to get 137,483