21531807

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{11447}}^1$

素因数の和:11483

約数の個数: 24

約数和(自身を含む): 35717760

約数和(自身を除く): 14185953

約数列:

[1, 3, 9, 11, 19, 33, 57, 99, 171, 209, 627, 1881, 11447, 34341, 103023, 125917, 217493, 377751, 652479, 1133253, 1957437, 2392423, 7177269, 21531807]

約数ペア:

[(1, 21531807), (3, 7177269), (9, 2392423), (11, 1957437), (19, 1133253), (33, 652479), (57, 377751), (99, 217493), (171, 125917), (209, 103023), (627, 34341), (1881, 11447)]