20491177

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3583}}^1$

素因数の和:3652

約数の個数: 16

約数和(自身を含む): 25231360

約数和(自身を除く): 4740183

約数列:

[1, 7, 19, 43, 133, 301, 817, 3583, 5719, 25081, 68077, 154069, 476539, 1078483, 2927311, 20491177]

約数ペア:

[(1, 20491177), (7, 2927311), (19, 1078483), (43, 476539), (133, 154069), (301, 68077), (817, 25081), (3583, 5719)]