131405351

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{709}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 171763200

約数和(自身を除く): 40357849

約数列:

[1, 7, 11, 29, 77, 83, 203, 319, 581, 709, 913, 2233, 2407, 4963, 6391, 7799, 16849, 20561, 26477, 54593, 58847, 143927, 185339, 226171, 411929, 647317, 1583197, 1706563, 4531219, 11945941, 18772193, 131405351]

約数ペア:

[(1, 131405351), (7, 18772193), (11, 11945941), (29, 4531219), (77, 1706563), (83, 1583197), (203, 647317), (319, 411929), (581, 226171), (709, 185339), (913, 143927), (2233, 58847), (2407, 54593), (4963, 26477), (6391, 20561), (7799, 16849)]