20557782

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{241}}^1\times {\mathrm{677}}^1$

素因数の和:933

約数の個数: 48

約数和(自身を含む): 51191712

約数和(自身を除く): 30633930

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 241, 482, 677, 723, 1354, 1446, 1687, 2031, 2169, 3374, 4062, 4338, 4739, 5061, 6093, 9478, 10122, 12186, 14217, 15183, 28434, 30366, 42651, 85302, 163157, 326314, 489471, 978942, 1142099, 1468413, 2284198, 2936826, 3426297, 6852594, 10278891, 20557782]

約数ペア:

[(1, 20557782), (2, 10278891), (3, 6852594), (6, 3426297), (7, 2936826), (9, 2284198), (14, 1468413), (18, 1142099), (21, 978942), (42, 489471), (63, 326314), (126, 163157), (241, 85302), (482, 42651), (677, 30366), (723, 28434), (1354, 15183), (1446, 14217), (1687, 12186), (2031, 10122), (2169, 9478), (3374, 6093), (4062, 5061), (4338, 4739)]