20764084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42901}}^1$

素因数の和:42927

約数の個数: 18

約数和(自身を含む): 39941762

約数和(自身を除く): 19177678

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42901, 85802, 171604, 471911, 943822, 1887644, 5191021, 10382042, 20764084]

約数ペア:

[(1, 20764084), (2, 10382042), (4, 5191021), (11, 1887644), (22, 943822), (44, 471911), (121, 171604), (242, 85802), (484, 42901)]