2099991

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:342

約数の個数: 16

約数和(自身を含む): 2917376

約数和(自身を除く): 817385

約数列:

[1, 3, 43, 73, 129, 219, 223, 669, 3139, 9417, 9589, 16279, 28767, 48837, 699997, 2099991]

約数ペア:

[(1, 2099991), (3, 699997), (43, 48837), (73, 28767), (129, 16279), (219, 9589), (223, 9417), (669, 3139)]