18456890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42923}}^1$

素因数の和:42973

約数の個数: 16

約数和(自身を含む): 33995808

約数和(自身を除く): 15538918

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 42923, 85846, 214615, 429230, 1845689, 3691378, 9228445, 18456890]

約数ペア:

[(1, 18456890), (2, 9228445), (5, 3691378), (10, 1845689), (43, 429230), (86, 214615), (215, 85846), (430, 42923)]