20040849

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{659}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 30201600

約数和(自身を除く): 10160751

約数列:

[1, 3, 9, 31, 93, 109, 279, 327, 659, 981, 1977, 3379, 5931, 10137, 20429, 30411, 61287, 71831, 183861, 215493, 646479, 2226761, 6680283, 20040849]

約数ペア:

[(1, 20040849), (3, 6680283), (9, 2226761), (31, 646479), (93, 215493), (109, 183861), (279, 71831), (327, 61287), (659, 30411), (981, 20429), (1977, 10137), (3379, 5931)]