21457007

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{829}}^1$

素因数の和:1034

約数の個数: 16

約数和(自身を含む): 25378080

約数和(自身を除く): 3921073

約数列:

[1, 11, 13, 143, 181, 829, 1991, 2353, 9119, 10777, 25883, 118547, 150049, 1650539, 1950637, 21457007]

約数ペア:

[(1, 21457007), (11, 1950637), (13, 1650539), (143, 150049), (181, 118547), (829, 25883), (1991, 10777), (2353, 9119)]