21608670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{720289}}^1$

素因数の和:720299

約数の個数: 16

約数和(自身を含む): 51860880

約数和(自身を除く): 30252210

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 720289, 1440578, 2160867, 3601445, 4321734, 7202890, 10804335, 21608670]

約数ペア:

[(1, 21608670), (2, 10804335), (3, 7202890), (5, 4321734), (6, 3601445), (10, 2160867), (15, 1440578), (30, 720289)]