51001209

素因数分解:

$3^2\times 7^2\times {\mathrm{109}}^1\times {\mathrm{1061}}^1$

素因数の和:1190

約数の個数: 36

約数和(自身を含む): 86563620

約数和(自身を除く): 35562411

約数列:

[1, 3, 7, 9, 21, 49, 63, 109, 147, 327, 441, 763, 981, 1061, 2289, 3183, 5341, 6867, 7427, 9549, 16023, 22281, 48069, 51989, 66843, 115649, 155967, 346947, 467901, 809543, 1040841, 2428629, 5666801, 7285887, 17000403, 51001209]

約数ペア:

[(1, 51001209), (3, 17000403), (7, 7285887), (9, 5666801), (21, 2428629), (49, 1040841), (63, 809543), (109, 467901), (147, 346947), (327, 155967), (441, 115649), (763, 66843), (981, 51989), (1061, 48069), (2289, 22281), (3183, 16023), (5341, 9549), (6867, 7427)]