18679845

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{28961}}^1$

素因数の和:29012

約数の個数: 16

約数和(自身を含む): 30583872

約数和(自身を除く): 11904027

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 28961, 86883, 144805, 434415, 1245323, 3735969, 6226615, 18679845]

約数ペア:

[(1, 18679845), (3, 6226615), (5, 3735969), (15, 1245323), (43, 434415), (129, 144805), (215, 86883), (645, 28961)]