21077276

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{479029}}^1$

素因数の和:479044

約数の個数: 12

約数和(自身を含む): 40238520

約数和(自身を除く): 19161244

約数列:

[1, 2, 4, 11, 22, 44, 479029, 958058, 1916116, 5269319, 10538638, 21077276]

約数ペア:

[(1, 21077276), (2, 10538638), (4, 5269319), (11, 1916116), (22, 958058), (44, 479029)]