18543889

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{11987}}^1$

素因数の和:12024

約数の個数: 16

約数和(自身を含む): 24167808

約数和(自身を除く): 5623919

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 11987, 83909, 155831, 203779, 1090817, 1426453, 2649127, 18543889]

約数ペア:

[(1, 18543889), (7, 2649127), (13, 1426453), (17, 1090817), (91, 203779), (119, 155831), (221, 83909), (1547, 11987)]