13777281

素因数分解:

$3^2\times 7^3\times {\mathrm{4463}}^1$

素因数の和:4490

約数の個数: 24

約数和(自身を含む): 23212800

約数和(自身を除く): 9435519

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 4463, 13389, 31241, 40167, 93723, 218687, 281169, 656061, 1530809, 1968183, 4592427, 13777281]

約数ペア:

[(1, 13777281), (3, 4592427), (7, 1968183), (9, 1530809), (21, 656061), (49, 281169), (63, 218687), (147, 93723), (343, 40167), (441, 31241), (1029, 13389), (3087, 4463)]