20704168

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36451}}^1$

素因数の和:36528

約数の個数: 16

約数和(自身を含む): 39368160

約数和(自身を除く): 18663992

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36451, 72902, 145804, 291608, 2588021, 5176042, 10352084, 20704168]

約数ペア:

[(1, 20704168), (2, 10352084), (4, 5176042), (8, 2588021), (71, 291608), (142, 145804), (284, 72902), (568, 36451)]