21014001

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{691}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 31665920

約数和(自身を除く): 10651919

約数列:

[1, 3, 9, 31, 93, 109, 279, 327, 691, 981, 2073, 3379, 6219, 10137, 21421, 30411, 64263, 75319, 192789, 225957, 677871, 2334889, 7004667, 21014001]

約数ペア:

[(1, 21014001), (3, 7004667), (9, 2334889), (31, 677871), (93, 225957), (109, 192789), (279, 75319), (327, 64263), (691, 30411), (981, 21421), (2073, 10137), (3379, 6219)]