389135817

素因数分解:

$3^2\times 7^1\times {\mathrm{1129}}^1\times {\mathrm{5471}}^1$

素因数の和:6613

約数の個数: 24

約数和(自身を含む): 643069440

約数和(自身を除く): 253933623

約数列:

[1, 3, 7, 9, 21, 63, 1129, 3387, 5471, 7903, 10161, 16413, 23709, 38297, 49239, 71127, 114891, 344673, 6176759, 18530277, 43237313, 55590831, 129711939, 389135817]

約数ペア:

[(1, 389135817), (3, 129711939), (7, 55590831), (9, 43237313), (21, 18530277), (63, 6176759), (1129, 344673), (3387, 114891), (5471, 71127), (7903, 49239), (10161, 38297), (16413, 23709)]