18845127

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3361}}^1$

素因数の和:3463

約数の個数: 24

約数和(自身を含む): 31468320

約数和(自身を除く): 12623193

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3361, 5607, 10083, 23527, 30249, 70581, 211743, 299129, 897387, 2093903, 2692161, 6281709, 18845127]

約数ペア:

[(1, 18845127), (3, 6281709), (7, 2692161), (9, 2093903), (21, 897387), (63, 299129), (89, 211743), (267, 70581), (623, 30249), (801, 23527), (1869, 10083), (3361, 5607)]