19788081

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{3793}}^1$

素因数の和:3880

約数の個数: 16

約数和(自身を含む): 27681024

約数和(自身を除く): 7892943

約数列:

[1, 3, 37, 47, 111, 141, 1739, 3793, 5217, 11379, 140341, 178271, 421023, 534813, 6596027, 19788081]

約数ペア:

[(1, 19788081), (3, 6596027), (37, 534813), (47, 421023), (111, 178271), (141, 140341), (1739, 11379), (3793, 5217)]