18228665

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{40063}}^1$

素因数の和:40088

約数の個数: 16

約数和(自身を含む): 26923008

約数和(自身を除く): 8694343

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 40063, 200315, 280441, 520819, 1402205, 2604095, 3645733, 18228665]

約数ペア:

[(1, 18228665), (5, 3645733), (7, 2604095), (13, 1402205), (35, 520819), (65, 280441), (91, 200315), (455, 40063)]