21660298

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2531}}^1$

素因数の和:2933

約数の個数: 16

約数和(自身を含む): 35549280

約数和(自身を除く): 13888982

約数列:

[1, 2, 11, 22, 389, 778, 2531, 4279, 5062, 8558, 27841, 55682, 984559, 1969118, 10830149, 21660298]

約数ペア:

[(1, 21660298), (2, 10830149), (11, 1969118), (22, 984559), (389, 55682), (778, 27841), (2531, 8558), (4279, 5062)]