18761665

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9311}}^1$

素因数の和:9360

約数の個数: 16

約数和(自身を含む): 25030656

約数和(自身を除く): 6268991

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9311, 46555, 121043, 288641, 605215, 1443205, 3752333, 18761665]

約数ペア:

[(1, 18761665), (5, 3752333), (13, 1443205), (31, 605215), (65, 288641), (155, 121043), (403, 46555), (2015, 9311)]