13247689

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{2971}}^1$

素因数の和:3005

約数の個数: 16

約数和(自身を含む): 16643200

約数和(自身を除く): 3395511

約数列:

[1, 7, 13, 49, 91, 343, 637, 2971, 4459, 20797, 38623, 145579, 270361, 1019053, 1892527, 13247689]

約数ペア:

[(1, 13247689), (7, 1892527), (13, 1019053), (49, 270361), (91, 145579), (343, 38623), (637, 20797), (2971, 4459)]