21047444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{478351}}^1$

素因数の和:478366

約数の個数: 12

約数和(自身を含む): 40181568

約数和(自身を除く): 19134124

約数列:

[1, 2, 4, 11, 22, 44, 478351, 956702, 1913404, 5261861, 10523722, 21047444]

約数ペア:

[(1, 21047444), (2, 10523722), (4, 5261861), (11, 1913404), (22, 956702), (44, 478351)]