12746223

素因数分解:

$3^2\times 7^3\times {\mathrm{4129}}^1$

素因数の和:4156

約数の個数: 24

約数和(自身を含む): 21476000

約数和(自身を除く): 8729777

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 4129, 12387, 28903, 37161, 86709, 202321, 260127, 606963, 1416247, 1820889, 4248741, 12746223]

約数ペア:

[(1, 12746223), (3, 4248741), (7, 1820889), (9, 1416247), (21, 606963), (49, 260127), (63, 202321), (147, 86709), (343, 37161), (441, 28903), (1029, 12387), (3087, 4129)]