28639755

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{7151}}^1$

素因数の和:7251

約数の個数: 24

約数和(自身を含む): 50207040

約数和(自身を除く): 21567285

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 4005, 7151, 21453, 35755, 64359, 107265, 321795, 636439, 1909317, 3182195, 5727951, 9546585, 28639755]

約数ペア:

[(1, 28639755), (3, 9546585), (5, 5727951), (9, 3182195), (15, 1909317), (45, 636439), (89, 321795), (267, 107265), (445, 64359), (801, 35755), (1335, 21453), (4005, 7151)]