17721145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{809}}^1$

素因数の和:1164

約数の個数: 16

約数和(自身を含む): 22997520

約数和(自身を除く): 5276375

約数列:

[1, 5, 13, 65, 337, 809, 1685, 4045, 4381, 10517, 21905, 52585, 272633, 1363165, 3544229, 17721145]

約数ペア:

[(1, 17721145), (5, 3544229), (13, 1363165), (65, 272633), (337, 52585), (809, 21905), (1685, 10517), (4045, 4381)]