20590791

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2389}}^1$

素因数の和:2435

約数の個数: 24

約数和(自身を含む): 31490640

約数和(自身を除く): 10899849

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2389, 2873, 7167, 8619, 31057, 40613, 93171, 121839, 403741, 527969, 1211223, 1583907, 6863597, 20590791]

約数ペア:

[(1, 20590791), (3, 6863597), (13, 1583907), (17, 1211223), (39, 527969), (51, 403741), (169, 121839), (221, 93171), (507, 40613), (663, 31057), (2389, 8619), (2873, 7167)]