28320089

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{1601}}^1$

素因数の和:1653

約数の個数: 18

約数和(自身を含む): 34790634

約数和(自身を除く): 6470545

約数列:

[1, 7, 19, 49, 133, 361, 931, 1601, 2527, 11207, 17689, 30419, 78449, 212933, 577961, 1490531, 4045727, 28320089]

約数ペア:

[(1, 28320089), (7, 4045727), (19, 1490531), (49, 577961), (133, 212933), (361, 78449), (931, 30419), (1601, 17689), (2527, 11207)]