20680839

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{1949}}^1$

素因数の和:2092

約数の個数: 20

約数和(自身を含む): 31145400

約数和(自身を除く): 10464561

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 1949, 3537, 5847, 10611, 17541, 52623, 157869, 255319, 765957, 2297871, 6893613, 20680839]

約数ペア:

[(1, 20680839), (3, 6893613), (9, 2297871), (27, 765957), (81, 255319), (131, 157869), (393, 52623), (1179, 17541), (1949, 10611), (3537, 5847)]