18228357

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3251}}^1$

素因数の和:3353

約数の個数: 24

約数和(自身を含む): 30438720

約数和(自身を除く): 12210363

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3251, 5607, 9753, 22757, 29259, 68271, 204813, 289339, 868017, 2025373, 2604051, 6076119, 18228357]

約数ペア:

[(1, 18228357), (3, 6076119), (7, 2604051), (9, 2025373), (21, 868017), (63, 289339), (89, 204813), (267, 68271), (623, 29259), (801, 22757), (1869, 9753), (3251, 5607)]