Q: What is the sum of all factors of the number 431,605,143 excluding 431,605,143?

 A: 218,930,457

Why is 218,930,457 the sum of all factors of 431,605,143, excluding 431,605,143?

The factors of the number 431,605,143 are: 1, 3, 9, 23, 69, 207, 2085049, 6255147, 18765441, 47956127, 143868381, 431605143.

If you add them up, you will get the total of 431,605,361. Now subtract 431,605,143 to get 218,930,457


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