20647588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23357}}^1$

素因数の和:23391

約数の個数: 24

約数和(自身を含む): 41203512

約数和(自身を除く): 20555924

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 23357, 46714, 93428, 303641, 397069, 607282, 794138, 1214564, 1588276, 5161897, 10323794, 20647588]

約数ペア:

[(1, 20647588), (2, 10323794), (4, 5161897), (13, 1588276), (17, 1214564), (26, 794138), (34, 607282), (52, 397069), (68, 303641), (221, 93428), (442, 46714), (884, 23357)]