19539455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{9697}}^1$

素因数の和:9746

約数の個数: 16

約数和(自身を含む): 26068224

約数和(自身を除く): 6528769

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 9697, 48485, 126061, 300607, 630305, 1503035, 3907891, 19539455]

約数ペア:

[(1, 19539455), (5, 3907891), (13, 1503035), (31, 630305), (65, 300607), (155, 126061), (403, 48485), (2015, 9697)]