Q: What is the sum of all factors of the number 77,770,121 excluding 77,770,121?

 A: 18,973,687

Why is 18,973,687 the sum of all factors of 77,770,121, excluding 77,770,121?

The factors of the number 77,770,121 are: 1, 11, 13, 17, 143, 187, 221, 2431, 31991, 351901, 415883, 543847, 4574713, 5982317, 7070011, 77770121.

If you add them up, you will get the total of 77,770,139. Now subtract 77,770,121 to get 18,973,687


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