28865557

素因数分解:

$7^2\times {\mathrm{31}}^2\times {\mathrm{613}}^1$

素因数の和:689

約数の個数: 18

約数和(自身を含む): 34753014

約数和(自身を除く): 5887457

約数列:

[1, 7, 31, 49, 217, 613, 961, 1519, 4291, 6727, 19003, 30037, 47089, 133021, 589093, 931147, 4123651, 28865557]

約数ペア:

[(1, 28865557), (7, 4123651), (31, 931147), (49, 589093), (217, 133021), (613, 47089), (961, 30037), (1519, 19003), (4291, 6727)]