25998531

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:515

約数の個数: 32

約数和(自身を含む): 39325440

約数和(自身を除く): 13326909

約数列:

[1, 3, 13, 37, 39, 43, 111, 129, 419, 481, 559, 1257, 1443, 1591, 1677, 4773, 5447, 15503, 16341, 18017, 20683, 46509, 54051, 62049, 201539, 234221, 604617, 666629, 702663, 1999887, 8666177, 25998531]

約数ペア:

[(1, 25998531), (3, 8666177), (13, 1999887), (37, 702663), (39, 666629), (43, 604617), (111, 234221), (129, 201539), (419, 62049), (481, 54051), (559, 46509), (1257, 20683), (1443, 18017), (1591, 16341), (1677, 15503), (4773, 5447)]