20390903

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1451}}^1$

素因数の和:1534

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 3026953

約数列:

[1, 13, 23, 47, 299, 611, 1081, 1451, 14053, 18863, 33373, 68197, 433849, 886561, 1568531, 20390903]

約数ペア:

[(1, 20390903), (13, 1568531), (23, 886561), (47, 433849), (299, 68197), (611, 33373), (1081, 18863), (1451, 14053)]