21402212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6143}}^1$

素因数の和:6227

約数の個数: 24

約数和(自身を含む): 40943616

約数和(自身を除く): 19541404

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 268, 871, 1742, 3484, 6143, 12286, 24572, 79859, 159718, 319436, 411581, 823162, 1646324, 5350553, 10701106, 21402212]

約数ペア:

[(1, 21402212), (2, 10701106), (4, 5350553), (13, 1646324), (26, 823162), (52, 411581), (67, 319436), (134, 159718), (268, 79859), (871, 24572), (1742, 12286), (3484, 6143)]