18904090

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43963}}^1$

素因数の和:44013

約数の個数: 16

約数和(自身を含む): 34819488

約数和(自身を除く): 15915398

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 43963, 87926, 219815, 439630, 1890409, 3780818, 9452045, 18904090]

約数ペア:

[(1, 18904090), (2, 9452045), (5, 3780818), (10, 1890409), (43, 439630), (86, 219815), (215, 87926), (430, 43963)]