20664615

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{33601}}^1$

素因数の和:33650

約数の個数: 16

約数和(自身を含む): 33870816

約数和(自身を除く): 13206201

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 33601, 100803, 168005, 504015, 1377641, 4132923, 6888205, 20664615]

約数ペア:

[(1, 20664615), (3, 6888205), (5, 4132923), (15, 1377641), (41, 504015), (123, 168005), (205, 100803), (615, 33601)]