28509885

素因数分解:

$3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6151}}^1$

素因数の和:6265

約数の個数: 24

約数和(自身を含む): 49905024

約数和(自身を除く): 21395139

約数列:

[1, 3, 5, 9, 15, 45, 103, 309, 515, 927, 1545, 4635, 6151, 18453, 30755, 55359, 92265, 276795, 633553, 1900659, 3167765, 5701977, 9503295, 28509885]

約数ペア:

[(1, 28509885), (3, 9503295), (5, 5701977), (9, 3167765), (15, 1900659), (45, 633553), (103, 276795), (309, 92265), (515, 55359), (927, 30755), (1545, 18453), (4635, 6151)]