Q: What is the sum of all factors of the number 666,009 excluding 666,009?
A: 379,431
The factors of the number 666,009 are: 1, 3, 9, 17, 27, 51, 153, 459, 1451, 4353, 13059, 24667, 39177, 74001, 222003, 666009.
If you add them up, you will get the total of 666,388. Now subtract 666,009 to get 379,431