21827617

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:748

約数の個数: 16

約数和(自身を含む): 25772032

約数和(自身を除く): 3944415

約数列:

[1, 7, 43, 127, 301, 571, 889, 3997, 5461, 24553, 38227, 72517, 171871, 507619, 3118231, 21827617]

約数ペア:

[(1, 21827617), (7, 3118231), (43, 507619), (127, 171871), (301, 72517), (571, 38227), (889, 24553), (3997, 5461)]