18052389

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:199

約数の個数: 40

約数和(自身を含む): 28366272

約数和(自身を除く): 10313883

約数列:

[1, 3, 9, 27, 43, 71, 73, 81, 129, 213, 219, 387, 639, 657, 1161, 1917, 1971, 3053, 3139, 3483, 5183, 5751, 5913, 9159, 9417, 15549, 27477, 28251, 46647, 82431, 84753, 139941, 222869, 247293, 254259, 419823, 668607, 2005821, 6017463, 18052389]

約数ペア:

[(1, 18052389), (3, 6017463), (9, 2005821), (27, 668607), (43, 419823), (71, 254259), (73, 247293), (81, 222869), (129, 139941), (213, 84753), (219, 82431), (387, 46647), (639, 28251), (657, 27477), (1161, 15549), (1917, 9417), (1971, 9159), (3053, 5913), (3139, 5751), (3483, 5183)]