15725871

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^2\times {\mathrm{113}}^1$

素因数の和:220

約数の個数: 36

約数和(自身を含む): 26758992

約数和(自身を除く): 11033121

約数列:

[1, 3, 7, 9, 21, 47, 63, 113, 141, 329, 339, 423, 791, 987, 1017, 2209, 2373, 2961, 5311, 6627, 7119, 15463, 15933, 19881, 37177, 46389, 47799, 111531, 139167, 249617, 334593, 748851, 1747319, 2246553, 5241957, 15725871]

約数ペア:

[(1, 15725871), (3, 5241957), (7, 2246553), (9, 1747319), (21, 748851), (47, 334593), (63, 249617), (113, 139167), (141, 111531), (329, 47799), (339, 46389), (423, 37177), (791, 19881), (987, 15933), (1017, 15463), (2209, 7119), (2373, 6627), (2961, 5311)]