18701215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9281}}^1$

素因数の和:9330

約数の個数: 16

約数和(自身を含む): 24950016

約数和(自身を除く): 6248801

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9281, 46405, 120653, 287711, 603265, 1438555, 3740243, 18701215]

約数ペア:

[(1, 18701215), (5, 3740243), (13, 1438555), (31, 603265), (65, 287711), (155, 120653), (403, 46405), (2015, 9281)]