21498191

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 25919040

約数和(自身を除く): 4420849

約数列:

[1, 11, 13, 79, 121, 143, 173, 869, 1027, 1573, 1903, 2249, 9559, 11297, 13667, 20933, 24739, 124267, 150337, 177671, 272129, 1653707, 1954381, 21498191]

約数ペア:

[(1, 21498191), (11, 1954381), (13, 1653707), (79, 272129), (121, 177671), (143, 150337), (173, 124267), (869, 24739), (1027, 20933), (1573, 13667), (1903, 11297), (2249, 9559)]