21654045

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68743}}^1$

素因数の和:68761

約数の個数: 24

約数和(自身を含む): 42896256

約数和(自身を除く): 21242211

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68743, 206229, 343715, 481201, 618687, 1031145, 1443603, 2406005, 3093435, 4330809, 7218015, 21654045]

約数ペア:

[(1, 21654045), (3, 7218015), (5, 4330809), (7, 3093435), (9, 2406005), (15, 1443603), (21, 1031145), (35, 618687), (45, 481201), (63, 343715), (105, 206229), (315, 68743)]