Q: What is the sum of all factors of the number 638,406,867 excluding 638,406,867?
A: 346,126,893
The factors of the number 638,406,867 are: 1, 3, 7, 21, 83, 249, 581, 1743, 366269, 1098807, 2563883, 7691649, 30400327, 91200981, 212802289, 638406867.
If you add them up, you will get the total of 638,407,213. Now subtract 638,406,867 to get 346,126,893