28471509

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2069}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 45208800

約数和(自身を除く): 16737291

約数列:

[1, 3, 9, 11, 33, 99, 139, 417, 1251, 1529, 2069, 4587, 6207, 13761, 18621, 22759, 68277, 204831, 287591, 862773, 2588319, 3163501, 9490503, 28471509]

約数ペア:

[(1, 28471509), (3, 9490503), (9, 3163501), (11, 2588319), (33, 862773), (99, 287591), (139, 204831), (417, 68277), (1251, 22759), (1529, 18621), (2069, 13761), (4587, 6207)]