31701879

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:748

約数の個数: 36

約数和(自身を含む): 51579528

約数和(自身を除く): 19877649

約数列:

[1, 3, 9, 11, 33, 43, 99, 121, 129, 363, 387, 473, 677, 1089, 1419, 2031, 4257, 5203, 6093, 7447, 15609, 22341, 29111, 46827, 67023, 81917, 87333, 245751, 261999, 320221, 737253, 960663, 2881989, 3522431, 10567293, 31701879]

約数ペア:

[(1, 31701879), (3, 10567293), (9, 3522431), (11, 2881989), (33, 960663), (43, 737253), (99, 320221), (121, 261999), (129, 245751), (363, 87333), (387, 81917), (473, 67023), (677, 46827), (1089, 29111), (1419, 22341), (2031, 15609), (4257, 7447), (5203, 6093)]