12904521

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5743}}^1$

素因数の和:5860

約数の個数: 16

約数和(自身を含む): 19851264

約数和(自身を除く): 6946743

約数列:

[1, 3, 7, 21, 107, 321, 749, 2247, 5743, 17229, 40201, 120603, 614501, 1843503, 4301507, 12904521]

約数ペア:

[(1, 12904521), (3, 4301507), (7, 1843503), (21, 614501), (107, 120603), (321, 40201), (749, 17229), (2247, 5743)]