Q: What is the sum of all factors of the number 420,653,421 excluding 420,653,421?
A: 208,956,339
The factors of the number 420,653,421 are: 1, 3, 9, 53, 59, 159, 177, 477, 531, 3127, 9381, 14947, 28143, 44841, 134523, 792191, 881873, 2376573, 2645619, 7129719, 7936857, 46739269, 140217807, 420653421.
If you add them up, you will get the total of 420,653,629. Now subtract 420,653,421 to get 208,956,339