21475701

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1061}}^1$

素因数の和:1253

約数の個数: 24

約数和(自身を含む): 33631416

約数和(自身を除く): 12155715

約数列:

[1, 3, 9, 13, 39, 117, 173, 519, 1061, 1557, 2249, 3183, 6747, 9549, 13793, 20241, 41379, 124137, 183553, 550659, 1651977, 2386189, 7158567, 21475701]

約数ペア:

[(1, 21475701), (3, 7158567), (9, 2386189), (13, 1651977), (39, 550659), (117, 183553), (173, 124137), (519, 41379), (1061, 20241), (1557, 13793), (2249, 9549), (3183, 6747)]