18313915

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{827}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 22733568

約数和(自身を除く): 4419653

約数列:

[1, 5, 43, 103, 215, 515, 827, 4135, 4429, 22145, 35561, 85181, 177805, 425905, 3662783, 18313915]

約数ペア:

[(1, 18313915), (5, 3662783), (43, 425905), (103, 177805), (215, 85181), (515, 35561), (827, 22145), (4135, 4429)]