20021908

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2647}}^1$

素因数の和:2743

約数の個数: 24

約数和(自身を含む): 36775424

約数和(自身を除く): 16753516

約数列:

[1, 2, 4, 31, 61, 62, 122, 124, 244, 1891, 2647, 3782, 5294, 7564, 10588, 82057, 161467, 164114, 322934, 328228, 645868, 5005477, 10010954, 20021908]

約数ペア:

[(1, 20021908), (2, 10010954), (4, 5005477), (31, 645868), (61, 328228), (62, 322934), (122, 164114), (124, 161467), (244, 82057), (1891, 10588), (2647, 7564), (3782, 5294)]