21591812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{5059}}^1$

素因数の和:5171

約数の個数: 24

約数和(自身を含む): 41653920

約数和(自身を除く): 20062108

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 5059, 10118, 20236, 55649, 111298, 222596, 490723, 981446, 1962892, 5397953, 10795906, 21591812]

約数ペア:

[(1, 21591812), (2, 10795906), (4, 5397953), (11, 1962892), (22, 981446), (44, 490723), (97, 222596), (194, 111298), (388, 55649), (1067, 20236), (2134, 10118), (4268, 5059)]