20906837

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:488

約数の個数: 16

約数和(自身を含む): 24440832

約数和(自身を除く): 3533995

約数列:

[1, 7, 103, 107, 271, 721, 749, 1897, 11021, 27913, 28997, 77147, 195391, 202979, 2986691, 20906837]

約数ペア:

[(1, 20906837), (7, 2986691), (103, 202979), (107, 195391), (271, 77147), (721, 28997), (749, 27913), (1897, 11021)]