28744893

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{2333}}^1$

素因数の和:2413

約数の個数: 18

約数和(自身を含む): 42691194

約数和(自身を除く): 13946301

約数列:

[1, 3, 9, 37, 111, 333, 1369, 2333, 4107, 6999, 12321, 20997, 86321, 258963, 776889, 3193877, 9581631, 28744893]

約数ペア:

[(1, 28744893), (3, 9581631), (9, 3193877), (37, 776889), (111, 258963), (333, 86321), (1369, 20997), (2333, 12321), (4107, 6999)]