18929905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{863}}^1$

素因数の和:1016

約数の個数: 16

約数和(自身を含む): 23514624

約数和(自身を除く): 4584719

約数列:

[1, 5, 41, 107, 205, 535, 863, 4315, 4387, 21935, 35383, 92341, 176915, 461705, 3785981, 18929905]

約数ペア:

[(1, 18929905), (5, 3785981), (41, 461705), (107, 176915), (205, 92341), (535, 35383), (863, 21935), (4315, 4387)]