21000377020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{150002693}}^1$

素因数の和:150002709

約数の個数: 24

約数和(自身を含む): 50400905184

約数和(自身を除く): 29400528164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 150002693, 300005386, 600010772, 750013465, 1050018851, 1500026930, 2100037702, 3000053860, 4200075404, 5250094255, 10500188510, 21000377020]

約数ペア:

[(1, 21000377020), (2, 10500188510), (4, 5250094255), (5, 4200075404), (7, 3000053860), (10, 2100037702), (14, 1500026930), (20, 1050018851), (28, 750013465), (35, 600010772), (70, 300005386), (140, 150002693)]