21118310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{111149}}^1$

素因数の和:111175

約数の個数: 16

約数和(自身を含む): 40014000

約数和(自身を除く): 18895690

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 111149, 222298, 555745, 1111490, 2111831, 4223662, 10559155, 21118310]

約数ペア:

[(1, 21118310), (2, 10559155), (5, 4223662), (10, 2111831), (19, 1111490), (38, 555745), (95, 222298), (190, 111149)]