20732621

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1663}}^1$

素因数の和:1820

約数の個数: 16

約数和(自身を含む): 25718784

約数和(自身を除く): 4986163

約数列:

[1, 7, 13, 91, 137, 959, 1663, 1781, 11641, 12467, 21619, 151333, 227831, 1594817, 2961803, 20732621]

約数ペア:

[(1, 20732621), (7, 2961803), (13, 1594817), (91, 227831), (137, 151333), (959, 21619), (1663, 12467), (1781, 11641)]