25556881

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:413

約数の個数: 24

約数和(自身を含む): 31728480

約数和(自身を除く): 6171599

約数列:

[1, 7, 19, 49, 97, 133, 283, 679, 931, 1843, 1981, 4753, 5377, 12901, 13867, 27451, 37639, 90307, 192157, 263473, 521569, 1345099, 3650983, 25556881]

約数ペア:

[(1, 25556881), (7, 3650983), (19, 1345099), (49, 521569), (97, 263473), (133, 192157), (283, 90307), (679, 37639), (931, 27451), (1843, 13867), (1981, 12901), (4753, 5377)]