13721617

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{1657}}^1$

素因数の和:1697

約数の個数: 18

約数和(自身を含む): 17294598

約数和(自身を除く): 3572981

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 1657, 8281, 11599, 21541, 81193, 150787, 280033, 1055509, 1960231, 13721617]

約数ペア:

[(1, 13721617), (7, 1960231), (13, 1055509), (49, 280033), (91, 150787), (169, 81193), (637, 21541), (1183, 11599), (1657, 8281)]