28942719

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 44217600

約数和(自身を除く): 15274881

約数列:

[1, 3, 13, 19, 39, 57, 139, 247, 281, 417, 741, 843, 1807, 2641, 3653, 5339, 5421, 7923, 10959, 16017, 34333, 39059, 69407, 102999, 117177, 208221, 507767, 742121, 1523301, 2226363, 9647573, 28942719]

約数ペア:

[(1, 28942719), (3, 9647573), (13, 2226363), (19, 1523301), (39, 742121), (57, 507767), (139, 208221), (247, 117177), (281, 102999), (417, 69407), (741, 39059), (843, 34333), (1807, 16017), (2641, 10959), (3653, 7923), (5339, 5421)]