20680005

素因数分解:

$3^1\times 5^1\times {\mathrm{337}}^1\times {\mathrm{4091}}^1$

素因数の和:4436

約数の個数: 16

約数和(自身を含む): 33194304

約数和(自身を除く): 12514299

約数列:

[1, 3, 5, 15, 337, 1011, 1685, 4091, 5055, 12273, 20455, 61365, 1378667, 4136001, 6893335, 20680005]

約数ペア:

[(1, 20680005), (3, 6893335), (5, 4136001), (15, 1378667), (337, 61365), (1011, 20455), (1685, 12273), (4091, 5055)]