20939971

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2311}}^1$

素因数の和:2382

約数の個数: 16

約数和(自身を含む): 24470208

約数和(自身を除く): 3530237

約数列:

[1, 13, 17, 41, 221, 533, 697, 2311, 9061, 30043, 39287, 94751, 510731, 1231763, 1610767, 20939971]

約数ペア:

[(1, 20939971), (13, 1610767), (17, 1231763), (41, 510731), (221, 94751), (533, 39287), (697, 30043), (2311, 9061)]