21020722

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{4007}}^1$

素因数の和:4113

約数の個数: 16

約数和(自身を含む): 32801472

約数和(自身を除く): 11780750

約数列:

[1, 2, 43, 61, 86, 122, 2623, 4007, 5246, 8014, 172301, 244427, 344602, 488854, 10510361, 21020722]

約数ペア:

[(1, 21020722), (2, 10510361), (43, 488854), (61, 344602), (86, 244427), (122, 172301), (2623, 8014), (4007, 5246)]