12790143

素因数分解:

$3^4\times {\mathrm{269}}^1\times {\mathrm{587}}^1$

素因数の和:868

約数の個数: 20

約数和(自身を含む): 19209960

約数和(自身を除く): 6419817

約数列:

[1, 3, 9, 27, 81, 269, 587, 807, 1761, 2421, 5283, 7263, 15849, 21789, 47547, 157903, 473709, 1421127, 4263381, 12790143]

約数ペア:

[(1, 12790143), (3, 4263381), (9, 1421127), (27, 473709), (81, 157903), (269, 47547), (587, 21789), (807, 15849), (1761, 7263), (2421, 5283)]