19505079

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17911}}^1$

素因数の和:17939

約数の個数: 18

約数和(自身を含む): 30969848

約数和(自身を除く): 11464769

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 17911, 53733, 161199, 197021, 591063, 1773189, 2167231, 6501693, 19505079]

約数ペア:

[(1, 19505079), (3, 6501693), (9, 2167231), (11, 1773189), (33, 591063), (99, 197021), (121, 161199), (363, 53733), (1089, 17911)]