20908605

素因数分解:

$3^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{1723}}^1$

素因数の和:2540

約数の個数: 16

約数和(自身を含む): 33514560

約数和(自身を除く): 12605955

約数列:

[1, 3, 5, 15, 809, 1723, 2427, 4045, 5169, 8615, 12135, 25845, 1393907, 4181721, 6969535, 20908605]

約数ペア:

[(1, 20908605), (3, 6969535), (5, 4181721), (15, 1393907), (809, 25845), (1723, 12135), (2427, 8615), (4045, 5169)]