20399973

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{6373}}^1$

素因数の和:6484

約数の個数: 16

約数和(自身を含む): 29983296

約数和(自身を除く): 9583323

約数列:

[1, 3, 11, 33, 97, 291, 1067, 3201, 6373, 19119, 70103, 210309, 618181, 1854543, 6799991, 20399973]

約数ペア:

[(1, 20399973), (3, 6799991), (11, 1854543), (33, 618181), (97, 210309), (291, 70103), (1067, 19119), (3201, 6373)]