21630356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{8059}}^1$

素因数の和:8135

約数の個数: 24

約数和(自身を含む): 41976480

約数和(自身を除く): 20346124

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 8059, 16118, 32236, 88649, 177298, 354596, 491599, 983198, 1966396, 5407589, 10815178, 21630356]

約数ペア:

[(1, 21630356), (2, 10815178), (4, 5407589), (11, 1966396), (22, 983198), (44, 491599), (61, 354596), (122, 177298), (244, 88649), (671, 32236), (1342, 16118), (2684, 8059)]