28178889

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{3581}}^1$

素因数の和:3688

約数の個数: 16

約数和(自身を含む): 39086784

約数和(自身を除く): 10907895

約数列:

[1, 3, 43, 61, 129, 183, 2623, 3581, 7869, 10743, 153983, 218441, 461949, 655323, 9392963, 28178889]

約数ペア:

[(1, 28178889), (3, 9392963), (43, 655323), (61, 461949), (129, 218441), (183, 153983), (2623, 10743), (3581, 7869)]