21202689

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21881}}^1$

素因数の和:21920

約数の個数: 16

約数和(自身を含む): 31510080

約数和(自身を除く): 10307391

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21881, 65643, 371977, 415739, 1115931, 1247217, 7067563, 21202689]

約数ペア:

[(1, 21202689), (3, 7067563), (17, 1247217), (19, 1115931), (51, 415739), (57, 371977), (323, 65643), (969, 21881)]