20708172

素因数分解:

$2^2\times 3^2\times {\mathrm{163}}^1\times {\mathrm{3529}}^1$

素因数の和:3702

約数の個数: 36

約数和(自身を含む): 52681720

約数和(自身を除く): 31973548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 163, 326, 489, 652, 978, 1467, 1956, 2934, 3529, 5868, 7058, 10587, 14116, 21174, 31761, 42348, 63522, 127044, 575227, 1150454, 1725681, 2300908, 3451362, 5177043, 6902724, 10354086, 20708172]

約数ペア:

[(1, 20708172), (2, 10354086), (3, 6902724), (4, 5177043), (6, 3451362), (9, 2300908), (12, 1725681), (18, 1150454), (36, 575227), (163, 127044), (326, 63522), (489, 42348), (652, 31761), (978, 21174), (1467, 14116), (1956, 10587), (2934, 7058), (3529, 5868)]