21910091

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{877}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 25960704

約数和(自身を除く): 4050613

約数列:

[1, 7, 43, 83, 301, 581, 877, 3569, 6139, 24983, 37711, 72791, 263977, 509537, 3130013, 21910091]

約数ペア:

[(1, 21910091), (7, 3130013), (43, 509537), (83, 263977), (301, 72791), (581, 37711), (877, 24983), (3569, 6139)]