20906205

素因数分解:

$3^1\times 5^1\times {\mathrm{691}}^1\times {\mathrm{2017}}^1$

素因数の和:2716

約数の個数: 16

約数和(自身を含む): 33514944

約数和(自身を除く): 12608739

約数列:

[1, 3, 5, 15, 691, 2017, 2073, 3455, 6051, 10085, 10365, 30255, 1393747, 4181241, 6968735, 20906205]

約数ペア:

[(1, 20906205), (3, 6968735), (5, 4181241), (15, 1393747), (691, 30255), (2017, 10365), (2073, 10085), (3455, 6051)]