20085687

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 31893264

約数和(自身を除く): 11807577

約数列:

[1, 3, 9, 17, 43, 51, 71, 129, 153, 213, 387, 639, 731, 1207, 1849, 2193, 3053, 3621, 5547, 6579, 9159, 10863, 16641, 27477, 31433, 51901, 94299, 131279, 155703, 282897, 393837, 467109, 1181511, 2231743, 6695229, 20085687]

約数ペア:

[(1, 20085687), (3, 6695229), (9, 2231743), (17, 1181511), (43, 467109), (51, 393837), (71, 282897), (129, 155703), (153, 131279), (213, 94299), (387, 51901), (639, 31433), (731, 27477), (1207, 16641), (1849, 10863), (2193, 9159), (3053, 6579), (3621, 5547)]