Q: What is the sum of all factors of the number 221,420 excluding 221,420?
A: 243,604
The factors of the number 221,420 are: 1, 2, 4, 5, 10, 20, 11071, 22142, 44284, 55355, 110710, 221420.
If you add them up, you will get the total of 221,663. Now subtract 221,420 to get 243,604