27630639

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{7933}}^1$

素因数の和:7988

約数の個数: 20

約数和(自身を含む): 42240616

約数和(自身を除く): 14609977

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 7933, 23799, 71397, 214191, 341119, 642573, 1023357, 3070071, 9210213, 27630639]

約数ペア:

[(1, 27630639), (3, 9210213), (9, 3070071), (27, 1023357), (43, 642573), (81, 341119), (129, 214191), (387, 71397), (1161, 23799), (3483, 7933)]