21475467

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{191}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 34699392

約数和(自身を除く): 13223925

約数列:

[1, 3, 9, 13, 31, 39, 93, 117, 191, 279, 403, 573, 961, 1209, 1719, 2483, 2883, 3627, 5921, 7449, 8649, 12493, 17763, 22347, 37479, 53289, 76973, 112437, 183551, 230919, 550653, 692757, 1651959, 2386163, 7158489, 21475467]

約数ペア:

[(1, 21475467), (3, 7158489), (9, 2386163), (13, 1651959), (31, 692757), (39, 550653), (93, 230919), (117, 183551), (191, 112437), (279, 76973), (403, 53289), (573, 37479), (961, 22347), (1209, 17763), (1719, 12493), (2483, 8649), (2883, 7449), (3627, 5921)]