20499309

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{383}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 31349760

約数和(自身を除く): 10850451

約数列:

[1, 3, 9, 19, 57, 171, 313, 383, 939, 1149, 2817, 3447, 5947, 7277, 17841, 21831, 53523, 65493, 119879, 359637, 1078911, 2277701, 6833103, 20499309]

約数ペア:

[(1, 20499309), (3, 6833103), (9, 2277701), (19, 1078911), (57, 359637), (171, 119879), (313, 65493), (383, 53523), (939, 21831), (1149, 17841), (2817, 7277), (3447, 5947)]