21382999

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 3897641

約数列:

[1, 11, 19, 71, 121, 131, 209, 781, 1349, 1441, 2299, 2489, 8591, 9301, 14839, 15851, 27379, 102311, 163229, 176719, 301169, 1125421, 1943909, 21382999]

約数ペア:

[(1, 21382999), (11, 1943909), (19, 1125421), (71, 301169), (121, 176719), (131, 163229), (209, 102311), (781, 27379), (1349, 15851), (1441, 14839), (2299, 9301), (2489, 8591)]