21587075

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{467}}^1$

素因数の和:563

約数の個数: 18

約数和(自身を含む): 27463644

約数和(自身を除く): 5876569

約数列:

[1, 5, 25, 43, 215, 467, 1075, 1849, 2335, 9245, 11675, 20081, 46225, 100405, 502025, 863483, 4317415, 21587075]

約数ペア:

[(1, 21587075), (5, 4317415), (25, 863483), (43, 502025), (215, 100405), (467, 46225), (1075, 20081), (1849, 11675), (2335, 9245)]