20631819

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7451}}^1$

素因数の和:7538

約数の個数: 16

約数和(自身を含む): 30046464

約数和(自身を除く): 9414645

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7451, 22353, 96863, 290589, 529021, 1587063, 6877273, 20631819]

約数ペア:

[(1, 20631819), (3, 6877273), (13, 1587063), (39, 529021), (71, 290589), (213, 96863), (923, 22353), (2769, 7451)]