28279791

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{443}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 42181776

約数和(自身を除く): 13901985

約数列:

[1, 3, 9, 41, 123, 173, 369, 443, 519, 1329, 1557, 3987, 7093, 18163, 21279, 54489, 63837, 76639, 163467, 229917, 689751, 3142199, 9426597, 28279791]

約数ペア:

[(1, 28279791), (3, 9426597), (9, 3142199), (41, 689751), (123, 229917), (173, 163467), (369, 76639), (443, 63837), (519, 54489), (1329, 21279), (1557, 18163), (3987, 7093)]