28720318

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{10789}}^1$

素因数の和:10824

約数の個数: 16

約数和(自身を含む): 47389680

約数和(自身を除く): 18669362

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 10789, 21578, 118679, 237358, 1305469, 2610938, 14360159, 28720318]

約数ペア:

[(1, 28720318), (2, 14360159), (11, 2610938), (22, 1305469), (121, 237358), (242, 118679), (1331, 21578), (2662, 10789)]