21003608

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61057}}^1$

素因数の和:61106

約数の個数: 16

約数和(自身を含む): 40298280

約数和(自身を除く): 19294672

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 61057, 122114, 244228, 488456, 2625451, 5250902, 10501804, 21003608]

約数ペア:

[(1, 21003608), (2, 10501804), (4, 5250902), (8, 2625451), (43, 488456), (86, 244228), (172, 122114), (344, 61057)]