21358492048

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25186901}}^1$

素因数の和:25186962

約数の個数: 20

約数和(自身を含む): 42162873948

約数和(自身を除く): 20804381900

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25186901, 50373802, 100747604, 201495208, 402990416, 1334905753, 2669811506, 5339623012, 10679246024, 21358492048]

約数ペア:

[(1, 21358492048), (2, 10679246024), (4, 5339623012), (8, 2669811506), (16, 1334905753), (53, 402990416), (106, 201495208), (212, 100747604), (424, 50373802), (848, 25186901)]