18647853

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 29500416

約数和(自身を除く): 10852563

約数列:

[1, 3, 7, 21, 43, 107, 129, 193, 301, 321, 579, 749, 903, 1351, 2247, 4053, 4601, 8299, 13803, 20651, 24897, 32207, 58093, 61953, 96621, 144557, 174279, 433671, 887993, 2663979, 6215951, 18647853]

約数ペア:

[(1, 18647853), (3, 6215951), (7, 2663979), (21, 887993), (43, 433671), (107, 174279), (129, 144557), (193, 96621), (301, 61953), (321, 58093), (579, 32207), (749, 24897), (903, 20651), (1351, 13803), (2247, 8299), (4053, 4601)]