21855045

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{13367}}^1$

素因数の和:13484

約数の個数: 16

約数和(自身を含む): 35291520

約数和(自身を除く): 13436475

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 13367, 40101, 66835, 200505, 1457003, 4371009, 7285015, 21855045]

約数ペア:

[(1, 21855045), (3, 7285015), (5, 4371009), (15, 1457003), (109, 200505), (327, 66835), (545, 40101), (1635, 13367)]