28657449

素因数分解:

$3^3\times {\mathrm{191}}^1\times {\mathrm{5557}}^1$

素因数の和:5757

約数の個数: 16

約数和(自身を含む): 42685440

約数和(自身を除く): 14027991

約数列:

[1, 3, 9, 27, 191, 573, 1719, 5157, 5557, 16671, 50013, 150039, 1061387, 3184161, 9552483, 28657449]

約数ペア:

[(1, 28657449), (3, 9552483), (9, 3184161), (27, 1061387), (191, 150039), (573, 50013), (1719, 16671), (5157, 5557)]