20831187

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7523}}^1$

素因数の和:7610

約数の個数: 16

約数和(自身を含む): 30336768

約数和(自身を除く): 9505581

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7523, 22569, 97799, 293397, 534133, 1602399, 6943729, 20831187]

約数ペア:

[(1, 20831187), (3, 6943729), (13, 1602399), (39, 534133), (71, 293397), (213, 97799), (923, 22569), (2769, 7523)]