20538553689

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{207479}}^1$

素因数の和:208149

約数の個数: 24

約数和(自身を含む): 31460607360

約数和(自身を除く): 10922053671

約数列:

[1, 3, 9, 17, 51, 153, 647, 1941, 5823, 10999, 32997, 98991, 207479, 622437, 1867311, 3527143, 10581429, 31744287, 134238913, 402716739, 1208150217, 2282061521, 6846184563, 20538553689]

約数ペア:

[(1, 20538553689), (3, 6846184563), (9, 2282061521), (17, 1208150217), (51, 402716739), (153, 134238913), (647, 31744287), (1941, 10581429), (5823, 3527143), (10999, 1867311), (32997, 622437), (98991, 207479)]