20562061

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{421}}^1$

素因数の和:481

約数の個数: 18

約数和(自身を含む): 23708382

約数和(自身を除く): 3146321

約数列:

[1, 13, 17, 169, 221, 289, 421, 2873, 3757, 5473, 7157, 48841, 71149, 93041, 121669, 1209533, 1581697, 20562061]

約数ペア:

[(1, 20562061), (13, 1581697), (17, 1209533), (169, 121669), (221, 93041), (289, 71149), (421, 48841), (2873, 7157), (3757, 5473)]