81021465

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{28579}}^1$

素因数の和:28603

約数の個数: 40

約数和(自身を含む): 165992640

約数和(自身を除く): 84971175

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 28579, 85737, 142895, 200053, 257211, 428685, 600159, 771633, 1000265, 1286055, 1800477, 2314899, 3000795, 3858165, 5401431, 9002385, 11574495, 16204293, 27007155, 81021465]

約数ペア:

[(1, 81021465), (3, 27007155), (5, 16204293), (7, 11574495), (9, 9002385), (15, 5401431), (21, 3858165), (27, 3000795), (35, 2314899), (45, 1800477), (63, 1286055), (81, 1000265), (105, 771633), (135, 600159), (189, 428685), (315, 257211), (405, 200053), (567, 142895), (945, 85737), (2835, 28579)]