13721477

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 4664443

約数列:

[1, 7, 11, 19, 77, 83, 113, 133, 209, 581, 791, 913, 1243, 1463, 1577, 2147, 6391, 8701, 9379, 11039, 15029, 17347, 23617, 65653, 103169, 121429, 165319, 178201, 722183, 1247407, 1960211, 13721477]

約数ペア:

[(1, 13721477), (7, 1960211), (11, 1247407), (19, 722183), (77, 178201), (83, 165319), (113, 121429), (133, 103169), (209, 65653), (581, 23617), (791, 17347), (913, 15029), (1243, 11039), (1463, 9379), (1577, 8701), (2147, 6391)]