18201911

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1439}}^1$

素因数の和:1598

約数の個数: 16

約数和(自身を含む): 22579200

約数和(自身を除く): 4377289

約数列:

[1, 7, 13, 91, 139, 973, 1439, 1807, 10073, 12649, 18707, 130949, 200021, 1400147, 2600273, 18201911]

約数ペア:

[(1, 18201911), (7, 2600273), (13, 1400147), (91, 200021), (139, 130949), (973, 18707), (1439, 12649), (1807, 10073)]