20959953

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 33423360

約数和(自身を除く): 12463407

約数列:

[1, 3, 7, 21, 29, 87, 127, 203, 271, 381, 609, 813, 889, 1897, 2667, 3683, 5691, 7859, 11049, 23577, 25781, 34417, 55013, 77343, 103251, 165039, 240919, 722757, 998093, 2994279, 6986651, 20959953]

約数ペア:

[(1, 20959953), (3, 6986651), (7, 2994279), (21, 998093), (29, 722757), (87, 240919), (127, 165039), (203, 103251), (271, 77343), (381, 55013), (609, 34417), (813, 25781), (889, 23577), (1897, 11049), (2667, 7859), (3683, 5691)]