139217183

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{2521}}^1$

素因数の和:2572

約数の個数: 20

約数和(自身を含む): 169538928

約数和(自身を除く): 30321745

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2401, 2521, 7889, 17647, 55223, 57983, 123529, 405881, 864703, 2841167, 6052921, 19888169, 139217183]

約数ペア:

[(1, 139217183), (7, 19888169), (23, 6052921), (49, 2841167), (161, 864703), (343, 405881), (1127, 123529), (2401, 57983), (2521, 55223), (7889, 17647)]