20700945

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12433}}^1$

素因数の和:12481

約数の個数: 24

約数和(自身を含む): 36854376

約数和(自身を除く): 16153431

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12433, 37299, 62165, 111897, 186495, 460021, 559485, 1380063, 2300105, 4140189, 6900315, 20700945]

約数ペア:

[(1, 20700945), (3, 6900315), (5, 4140189), (9, 2300105), (15, 1380063), (37, 559485), (45, 460021), (111, 186495), (185, 111897), (333, 62165), (555, 37299), (1665, 12433)]