19843999

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4813}}^1$

素因数の和:4870

約数の個数: 16

約数和(自身を含む): 24647680

約数和(自身を除く): 4803681

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 4813, 33691, 91447, 149203, 640129, 1044421, 2834857, 19843999]

約数ペア:

[(1, 19843999), (7, 2834857), (19, 1044421), (31, 640129), (133, 149203), (217, 91447), (589, 33691), (4123, 4813)]