21675311

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 25622784

約数和(自身を除く): 3947473

約数列:

[1, 7, 43, 107, 301, 673, 749, 4601, 4711, 28939, 32207, 72011, 202573, 504077, 3096473, 21675311]

約数ペア:

[(1, 21675311), (7, 3096473), (43, 504077), (107, 202573), (301, 72011), (673, 32207), (749, 28939), (4601, 4711)]