21000663508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1857151}}^1$

素因数の和:1857423

約数の個数: 24

約数和(自身を含む): 40248198144

約数和(自身を除く): 19247534636

約数列:

[1, 2, 4, 11, 22, 44, 257, 514, 1028, 2827, 5654, 11308, 1857151, 3714302, 7428604, 20428661, 40857322, 81714644, 477287807, 954575614, 1909151228, 5250165877, 10500331754, 21000663508]

約数ペア:

[(1, 21000663508), (2, 10500331754), (4, 5250165877), (11, 1909151228), (22, 954575614), (44, 477287807), (257, 81714644), (514, 40857322), (1028, 20428661), (2827, 7428604), (5654, 3714302), (11308, 1857151)]