11990391

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2389}}^1$

素因数の和:2638

約数の個数: 16

約数和(自身を含む): 18355200

約数和(自身を除く): 6364809

約数列:

[1, 3, 7, 21, 239, 717, 1673, 2389, 5019, 7167, 16723, 50169, 570971, 1712913, 3996797, 11990391]

約数ペア:

[(1, 11990391), (3, 3996797), (7, 1712913), (21, 570971), (239, 50169), (717, 16723), (1673, 7167), (2389, 5019)]