20388412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{9859}}^1$

素因数の和:9921

約数の個数: 24

約数和(自身を含む): 39755520

約数和(自身を除く): 19367108

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 188, 517, 1034, 2068, 9859, 19718, 39436, 108449, 216898, 433796, 463373, 926746, 1853492, 5097103, 10194206, 20388412]

約数ペア:

[(1, 20388412), (2, 10194206), (4, 5097103), (11, 1853492), (22, 926746), (44, 463373), (47, 433796), (94, 216898), (188, 108449), (517, 39436), (1034, 19718), (2068, 9859)]