28207755

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13337}}^1$

素因数の和:13395

約数の個数: 24

約数和(自身を含む): 49937472

約数和(自身を除く): 21729717

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 13337, 40011, 66685, 120033, 200055, 600165, 626839, 1880517, 3134195, 5641551, 9402585, 28207755]

約数ペア:

[(1, 28207755), (3, 9402585), (5, 5641551), (9, 3134195), (15, 1880517), (45, 626839), (47, 600165), (141, 200055), (235, 120033), (423, 66685), (705, 40011), (2115, 13337)]