20531485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8537}}^1$

素因数の和:8592

約数の個数: 16

約数和(自身を含む): 27253296

約数和(自身を除く): 6721811

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8537, 42685, 110981, 315869, 554905, 1579345, 4106297, 20531485]

約数ペア:

[(1, 20531485), (5, 4106297), (13, 1579345), (37, 554905), (65, 315869), (185, 110981), (481, 42685), (2405, 8537)]