18273213

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3259}}^1$

素因数の和:3361

約数の個数: 24

約数和(自身を含む): 30513600

約数和(自身を除く): 12240387

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3259, 5607, 9777, 22813, 29331, 68439, 205317, 290051, 870153, 2030357, 2610459, 6091071, 18273213]

約数ペア:

[(1, 18273213), (3, 6091071), (7, 2610459), (9, 2030357), (21, 870153), (63, 290051), (89, 205317), (267, 68439), (623, 29331), (801, 22813), (1869, 9777), (3259, 5607)]