21129968241

素因数分解:

$3^2\times {\mathrm{163}}^1\times {\mathrm{1823}}^1\times {\mathrm{7901}}^1$

素因数の和:9893

約数の個数: 24

約数和(自身を含む): 30729044736

約数和(自身を除く): 9599076495

約数列:

[1, 3, 9, 163, 489, 1467, 1823, 5469, 7901, 16407, 23703, 71109, 297149, 891447, 1287863, 2674341, 3863589, 11590767, 14403523, 43210569, 129631707, 2347774249, 7043322747, 21129968241]

約数ペア:

[(1, 21129968241), (3, 7043322747), (9, 2347774249), (163, 129631707), (489, 43210569), (1467, 14403523), (1823, 11590767), (5469, 3863589), (7901, 2674341), (16407, 1287863), (23703, 891447), (71109, 297149)]