646441393

素因数分解:

${\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{1543}}^1$

素因数の和:1673

約数の個数: 24

約数和(自身を含む): 730114368

約数和(自身を除く): 83672975

約数列:

[1, 13, 37, 67, 169, 481, 871, 1543, 2479, 6253, 11323, 20059, 32227, 57091, 103381, 260767, 418951, 742183, 1343953, 3825097, 9648379, 17471389, 49726261, 646441393]

約数ペア:

[(1, 646441393), (13, 49726261), (37, 17471389), (67, 9648379), (169, 3825097), (481, 1343953), (871, 742183), (1543, 418951), (2479, 260767), (6253, 103381), (11323, 57091), (20059, 32227)]