21808423

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{5099}}^1$

素因数の和:5166

約数の個数: 16

約数和(自身を含む): 27417600

約数和(自身を除く): 5609177

約数列:

[1, 7, 13, 47, 91, 329, 611, 4277, 5099, 35693, 66287, 239653, 464009, 1677571, 3115489, 21808423]

約数ペア:

[(1, 21808423), (7, 3115489), (13, 1677571), (47, 464009), (91, 239653), (329, 66287), (611, 35693), (4277, 5099)]