21000425468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{6827}}^1\times {\mathrm{69911}}^1$

素因数の和:76753

約数の個数: 24

約数和(自身を含む): 40098167424

約数和(自身を除く): 19097741956

約数列:

[1, 2, 4, 11, 22, 44, 6827, 13654, 27308, 69911, 75097, 139822, 150194, 279644, 300388, 769021, 1538042, 3076084, 477282397, 954564794, 1909129588, 5250106367, 10500212734, 21000425468]

約数ペア:

[(1, 21000425468), (2, 10500212734), (4, 5250106367), (11, 1909129588), (22, 954564794), (44, 477282397), (6827, 3076084), (13654, 1538042), (27308, 769021), (69911, 300388), (75097, 279644), (139822, 150194)]