20784778

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3797}}^1$

素因数の和:3846

約数の個数: 32

約数和(自身を含む): 39377664

約数和(自身を除く): 18592886

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 119, 161, 238, 322, 391, 782, 2737, 3797, 5474, 7594, 26579, 53158, 64549, 87331, 129098, 174662, 451843, 611317, 903686, 1222634, 1484627, 2969254, 10392389, 20784778]

約数ペア:

[(1, 20784778), (2, 10392389), (7, 2969254), (14, 1484627), (17, 1222634), (23, 903686), (34, 611317), (46, 451843), (119, 174662), (161, 129098), (238, 87331), (322, 64549), (391, 53158), (782, 26579), (2737, 7594), (3797, 5474)]