12876543

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 19891200

約数和(自身を除く): 7014657

約数列:

[1, 3, 9, 27, 47, 73, 139, 141, 219, 417, 423, 657, 1251, 1269, 1971, 3431, 3753, 6533, 10147, 10293, 19599, 30441, 30879, 58797, 91323, 92637, 176391, 273969, 476909, 1430727, 4292181, 12876543]

約数ペア:

[(1, 12876543), (3, 4292181), (9, 1430727), (27, 476909), (47, 273969), (73, 176391), (139, 92637), (141, 91323), (219, 58797), (417, 30879), (423, 30441), (657, 19599), (1251, 10293), (1269, 10147), (1971, 6533), (3431, 3753)]