20518617

素因数分解:

$3^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{2267}}^1$

素因数の和:2708

約数の個数: 16

約数和(自身を含む): 31352832

約数和(自身を除く): 10834215

約数列:

[1, 3, 7, 21, 431, 1293, 2267, 3017, 6801, 9051, 15869, 47607, 977077, 2931231, 6839539, 20518617]

約数ペア:

[(1, 20518617), (3, 6839539), (7, 2931231), (21, 977077), (431, 47607), (1293, 15869), (2267, 9051), (3017, 6801)]