28208385

素因数分解:

$3^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{937}}^1$

素因数の和:1174

約数の個数: 32

約数和(自身を含む): 50426880

約数和(自身を除く): 22218495

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 223, 669, 937, 1115, 2007, 2811, 3345, 4685, 6021, 8433, 10035, 14055, 25299, 30105, 42165, 126495, 208951, 626853, 1044755, 1880559, 3134265, 5641677, 9402795, 28208385]

約数ペア:

[(1, 28208385), (3, 9402795), (5, 5641677), (9, 3134265), (15, 1880559), (27, 1044755), (45, 626853), (135, 208951), (223, 126495), (669, 42165), (937, 30105), (1115, 25299), (2007, 14055), (2811, 10035), (3345, 8433), (4685, 6021)]