128727249

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{487}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 202008576

約数和(自身を除く): 73281327

約数列:

[1, 3, 7, 21, 41, 123, 287, 307, 487, 861, 921, 1461, 2149, 3409, 6447, 10227, 12587, 19967, 37761, 59901, 88109, 139769, 149509, 264327, 419307, 448527, 1046563, 3139689, 6129869, 18389607, 42909083, 128727249]

約数ペア:

[(1, 128727249), (3, 42909083), (7, 18389607), (21, 6129869), (41, 3139689), (123, 1046563), (287, 448527), (307, 419307), (487, 264327), (861, 149509), (921, 139769), (1461, 88109), (2149, 59901), (3409, 37761), (6447, 19967), (10227, 12587)]