21443217

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{859}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 29350080

約数和(自身を除く): 7906863

約数列:

[1, 3, 53, 157, 159, 471, 859, 2577, 8321, 24963, 45527, 134863, 136581, 404589, 7147739, 21443217]

約数ペア:

[(1, 21443217), (3, 7147739), (53, 404589), (157, 136581), (159, 134863), (471, 45527), (859, 24963), (2577, 8321)]