21807269

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{691}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 25244160

約数和(自身を除く): 3436891

約数列:

[1, 11, 19, 151, 209, 691, 1661, 2869, 7601, 13129, 31559, 104341, 144419, 1147751, 1982479, 21807269]

約数ペア:

[(1, 21807269), (11, 1982479), (19, 1147751), (151, 144419), (209, 104341), (691, 31559), (1661, 13129), (2869, 7601)]