28666449

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{1987}}^1$

素因数の和:2229

約数の個数: 24

約数和(自身を含む): 47552960

約数和(自身を除く): 18886511

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1603, 1987, 2061, 4809, 5961, 13909, 14427, 17883, 41727, 125181, 455023, 1365069, 3185161, 4095207, 9555483, 28666449]

約数ペア:

[(1, 28666449), (3, 9555483), (7, 4095207), (9, 3185161), (21, 1365069), (63, 455023), (229, 125181), (687, 41727), (1603, 17883), (1987, 14427), (2061, 13909), (4809, 5961)]