21907091521

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{389591}}^1$

素因数の和:389904

約数の個数: 16

約数和(自身を含む): 25993578240

約数和(自身を除く): 4086486719

約数列:

[1, 7, 29, 203, 277, 1939, 8033, 56231, 389591, 2727137, 11298139, 79086973, 107916707, 755416949, 3129584503, 21907091521]

約数ペア:

[(1, 21907091521), (7, 3129584503), (29, 755416949), (203, 107916707), (277, 79086973), (1939, 11298139), (8033, 2727137), (56231, 389591)]