20430977

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 24161280

約数和(自身を除く): 3730303

約数列:

[1, 7, 43, 103, 301, 659, 721, 4429, 4613, 28337, 31003, 67877, 198359, 475139, 2918711, 20430977]

約数ペア:

[(1, 20430977), (7, 2918711), (43, 475139), (103, 198359), (301, 67877), (659, 31003), (721, 28337), (4429, 4613)]