81406262

素因数分解:

$2^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{20693}}^1$

素因数の和:20983

約数の個数: 16

約数和(自身を含む): 140056992

約数和(自身を除く): 58650730

約数列:

[1, 2, 7, 14, 281, 562, 1967, 3934, 20693, 41386, 144851, 289702, 5814733, 11629466, 40703131, 81406262]

約数ペア:

[(1, 81406262), (2, 40703131), (7, 11629466), (14, 5814733), (281, 289702), (562, 144851), (1967, 41386), (3934, 20693)]