81686822

素因数分解:

$2^1\times 7^4\times {\mathrm{17011}}^1$

素因数の和:17041

約数の個数: 20

約数和(自身を含む): 142951836

約数和(自身を除く): 61265014

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 17011, 34022, 119077, 238154, 833539, 1667078, 5834773, 11669546, 40843411, 81686822]

約数ペア:

[(1, 81686822), (2, 40843411), (7, 11669546), (14, 5834773), (49, 1667078), (98, 833539), (343, 238154), (686, 119077), (2401, 34022), (4802, 17011)]