16227281

素因数分解:

$7^2\times {\mathrm{61}}^2\times {\mathrm{89}}^1$

素因数の和:225

約数の個数: 18

約数和(自身を含む): 19406790

約数和(自身を除く): 3179509

約数列:

[1, 7, 49, 61, 89, 427, 623, 2989, 3721, 4361, 5429, 26047, 38003, 182329, 266021, 331169, 2318183, 16227281]

約数ペア:

[(1, 16227281), (7, 2318183), (49, 331169), (61, 266021), (89, 182329), (427, 38003), (623, 26047), (2989, 5429), (3721, 4361)]