Q: What is the sum of all factors of the number 213,309 excluding 213,309?
A: 98,847
The factors of the number 213,309 are: 1, 3, 9, 137, 173, 411, 519, 1233, 1557, 23701, 71103, 213309.
If you add them up, you will get the total of 213,407. Now subtract 213,309 to get 98,847