13381385

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 16610880

約数和(自身を除く): 3229495

約数列:

[1, 5, 43, 109, 215, 545, 571, 2855, 4687, 23435, 24553, 62239, 122765, 311195, 2676277, 13381385]

約数ペア:

[(1, 13381385), (5, 2676277), (43, 311195), (109, 122765), (215, 62239), (545, 24553), (571, 23435), (2855, 4687)]