12571293

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 20608000

約数和(自身を除く): 8036707

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 343, 399, 643, 931, 1029, 1929, 2793, 4501, 6517, 12217, 13503, 19551, 31507, 36651, 85519, 94521, 220549, 256557, 598633, 661647, 1795899, 4190431, 12571293]

約数ペア:

[(1, 12571293), (3, 4190431), (7, 1795899), (19, 661647), (21, 598633), (49, 256557), (57, 220549), (133, 94521), (147, 85519), (343, 36651), (399, 31507), (643, 19551), (931, 13503), (1029, 12217), (1929, 6517), (2793, 4501)]