19981093155

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30978439}}^1$

素因数の和:30978490

約数の個数: 16

約数和(自身を含む): 32713232640

約数和(自身を除く): 12732139485

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 30978439, 92935317, 154892195, 464676585, 1332072877, 3996218631, 6660364385, 19981093155]

約数ペア:

[(1, 19981093155), (3, 6660364385), (5, 3996218631), (15, 1332072877), (43, 464676585), (129, 154892195), (215, 92935317), (645, 30978439)]