21541564

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11941}}^1$

素因数の和:11997

約数の個数: 24

約数和(自身を含む): 42131376

約数和(自身を除く): 20589812

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11941, 23882, 47764, 131351, 262702, 489581, 525404, 979162, 1958324, 5385391, 10770782, 21541564]

約数ペア:

[(1, 21541564), (2, 10770782), (4, 5385391), (11, 1958324), (22, 979162), (41, 525404), (44, 489581), (82, 262702), (164, 131351), (451, 47764), (902, 23882), (1804, 11941)]