161787159

素因数分解:

$3^3\times {\mathrm{643}}^1\times {\mathrm{9319}}^1$

素因数の和:9971

約数の個数: 16

約数和(自身を含む): 240083200

約数和(自身を除く): 78296041

約数列:

[1, 3, 9, 27, 643, 1929, 5787, 9319, 17361, 27957, 83871, 251613, 5992117, 17976351, 53929053, 161787159]

約数ペア:

[(1, 161787159), (3, 53929053), (9, 17976351), (27, 5992117), (643, 251613), (1929, 83871), (5787, 27957), (9319, 17361)]