20477204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11351}}^1$

素因数の和:11407

約数の個数: 24

約数和(自身を含む): 40049856

約数和(自身を除く): 19572652

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11351, 22702, 45404, 124861, 249722, 465391, 499444, 930782, 1861564, 5119301, 10238602, 20477204]

約数ペア:

[(1, 20477204), (2, 10238602), (4, 5119301), (11, 1861564), (22, 930782), (41, 499444), (44, 465391), (82, 249722), (164, 124861), (451, 45404), (902, 22702), (1804, 11351)]