28126889

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{571}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 33386496

約数和(自身を除く): 5259607

約数列:

[1, 7, 31, 217, 227, 571, 1589, 3997, 7037, 17701, 49259, 123907, 129617, 907319, 4018127, 28126889]

約数ペア:

[(1, 28126889), (7, 4018127), (31, 907319), (217, 129617), (227, 123907), (571, 49259), (1589, 17701), (3997, 7037)]