18074620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21017}}^1$

素因数の和:21069

約数の個数: 24

約数和(自身を含む): 38841264

約数和(自身を除く): 20766644

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 21017, 42034, 84068, 105085, 210170, 420340, 903731, 1807462, 3614924, 4518655, 9037310, 18074620]

約数ペア:

[(1, 18074620), (2, 9037310), (4, 4518655), (5, 3614924), (10, 1807462), (20, 903731), (43, 420340), (86, 210170), (172, 105085), (215, 84068), (430, 42034), (860, 21017)]