211163905

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1\times {\mathrm{787}}^1$

素因数の和:1416

約数の個数: 16

約数和(自身を含む): 256673664

約数和(自身を除く): 45509759

約数列:

[1, 5, 103, 515, 521, 787, 2605, 3935, 53663, 81061, 268315, 405305, 410027, 2050135, 42232781, 211163905]

約数ペア:

[(1, 211163905), (5, 42232781), (103, 2050135), (515, 410027), (521, 405305), (787, 268315), (2605, 81061), (3935, 53663)]