Q: What is the sum of all factors of the number 421,213,215 excluding 421,213,215?
A: 252,727,953
The factors of the number 421,213,215 are: 1, 3, 5, 15, 28080881, 84242643, 140404405, 421213215.
If you add them up, you will get the total of 421,213,467. Now subtract 421,213,215 to get 252,727,953