21791341

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1571}}^1$

素因数の和:1692

約数の個数: 16

約数和(自身を含む): 25881408

約数和(自身を除く): 4090067

約数列:

[1, 11, 13, 97, 143, 1067, 1261, 1571, 13871, 17281, 20423, 152387, 224653, 1676257, 1981031, 21791341]

約数ペア:

[(1, 21791341), (11, 1981031), (13, 1676257), (97, 224653), (143, 152387), (1067, 20423), (1261, 17281), (1571, 13871)]