21406866

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{2161}}^1$

素因数の和:2306

約数の個数: 32

約数和(自身を含む): 46491648

約数和(自身を除く): 25084782

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 127, 254, 381, 762, 1651, 2161, 3302, 4322, 4953, 6483, 9906, 12966, 28093, 56186, 84279, 168558, 274447, 548894, 823341, 1646682, 3567811, 7135622, 10703433, 21406866]

約数ペア:

[(1, 21406866), (2, 10703433), (3, 7135622), (6, 3567811), (13, 1646682), (26, 823341), (39, 548894), (78, 274447), (127, 168558), (254, 84279), (381, 56186), (762, 28093), (1651, 12966), (2161, 9906), (3302, 6483), (4322, 4953)]