21729807

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2131}}^1$

素因数の和:2251

約数の個数: 24

約数和(自身を含む): 34589568

約数和(自身を除く): 12859761

約数列:

[1, 3, 9, 11, 33, 99, 103, 309, 927, 1133, 2131, 3399, 6393, 10197, 19179, 23441, 70323, 210969, 219493, 658479, 1975437, 2414423, 7243269, 21729807]

約数ペア:

[(1, 21729807), (3, 7243269), (9, 2414423), (11, 1975437), (33, 658479), (99, 219493), (103, 210969), (309, 70323), (927, 23441), (1133, 19179), (2131, 10197), (3399, 6393)]