Q: What is the sum of all factors of the number 505,353,447 excluding 505,353,447?

A: 280,587,033

Why is 280,587,033 the sum of all factors of 505,353,447, excluding 505,353,447?

The factors of the number 505,353,447 are: 1, 3, 9, 23, 47, 69, 127, 141, 207, 381, 409, 423, 1081, 1143, 1227, 2921, 3243, 3681, 5969, 8763, 9407, 9729, 17907, 19223, 26289, 28221, 51943, 53721, 57669, 84663, 137287, 155829, 173007, 411861, 442129, 467487, 1194689, 1235583, 1326387, 2441321, 3584067, 3979161, 7323963, 10752201, 21971889, 56150383, 168451149, 505353447.

If you add them up, you will get the total of 505,353,727. Now subtract 505,353,447 to get 280,587,033