21240222

素因数分解:

$2^1\times 3^1\times {\mathrm{709}}^1\times {\mathrm{4993}}^1$

素因数の和:5707

約数の個数: 16

約数和(自身を含む): 42548880

約数和(自身を除く): 21308658

約数列:

[1, 2, 3, 6, 709, 1418, 2127, 4254, 4993, 9986, 14979, 29958, 3540037, 7080074, 10620111, 21240222]

約数ペア:

[(1, 21240222), (2, 10620111), (3, 7080074), (6, 3540037), (709, 29958), (1418, 14979), (2127, 9986), (4254, 4993)]