20178880084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41691901}}^1$

素因数の和:41691927

約数の個数: 18

約数和(自身を含む): 38815160762

約数和(自身を除く): 18636280678

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41691901, 83383802, 166767604, 458610911, 917221822, 1834443644, 5044720021, 10089440042, 20178880084]

約数ペア:

[(1, 20178880084), (2, 10089440042), (4, 5044720021), (11, 1834443644), (22, 917221822), (44, 458610911), (121, 166767604), (242, 83383802), (484, 41691901)]