21329147

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{433}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 25331712

約数和(自身を除く): 4002565

約数列:

[1, 7, 31, 217, 227, 433, 1589, 3031, 7037, 13423, 49259, 93961, 98291, 688037, 3047021, 21329147]

約数ペア:

[(1, 21329147), (7, 3047021), (31, 688037), (217, 98291), (227, 93961), (433, 49259), (1589, 13423), (3031, 7037)]