20684505

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32069}}^1$

素因数の和:32120

約数の個数: 16

約数和(自身を含む): 33865920

約数和(自身を除く): 13181415

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32069, 96207, 160345, 481035, 1378967, 4136901, 6894835, 20684505]

約数ペア:

[(1, 20684505), (3, 6894835), (5, 4136901), (15, 1378967), (43, 481035), (129, 160345), (215, 96207), (645, 32069)]