21241251

素因数分解:

$3^3\times {\mathrm{271}}^1\times {\mathrm{2903}}^1$

素因数の和:3183

約数の個数: 16

約数和(自身を含む): 31595520

約数和(自身を除く): 10354269

約数列:

[1, 3, 9, 27, 271, 813, 2439, 2903, 7317, 8709, 26127, 78381, 786713, 2360139, 7080417, 21241251]

約数ペア:

[(1, 21241251), (3, 7080417), (9, 2360139), (27, 786713), (271, 78381), (813, 26127), (2439, 8709), (2903, 7317)]