20181951

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{17657}}^1$

素因数の和:17790

約数の個数: 12

約数和(自身を含む): 29382912

約数和(自身を除く): 9200961

約数列:

[1, 3, 9, 127, 381, 1143, 17657, 52971, 158913, 2242439, 6727317, 20181951]

約数ペア:

[(1, 20181951), (3, 6727317), (9, 2242439), (127, 158913), (381, 52971), (1143, 17657)]