20517609

素因数分解:

$3^1\times 7^1\times {\mathrm{881}}^1\times {\mathrm{1109}}^1$

素因数の和:2000

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 10811031

約数列:

[1, 3, 7, 21, 881, 1109, 2643, 3327, 6167, 7763, 18501, 23289, 977029, 2931087, 6839203, 20517609]

約数ペア:

[(1, 20517609), (3, 6839203), (7, 2931087), (21, 977029), (881, 23289), (1109, 18501), (2643, 7763), (3327, 6167)]