20804866

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:809

約数の個数: 16

約数和(自身を含む): 31726080

約数和(自身を除く): 10921214

約数列:

[1, 2, 107, 191, 214, 382, 509, 1018, 20437, 40874, 54463, 97219, 108926, 194438, 10402433, 20804866]

約数ペア:

[(1, 20804866), (2, 10402433), (107, 194438), (191, 108926), (214, 97219), (382, 54463), (509, 40874), (1018, 20437)]