20831721

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9739}}^1$

素因数の和:9796

約数の個数: 16

約数和(自身を含む): 29921280

約数和(自身を除く): 9089559

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9739, 29217, 223997, 301909, 671991, 905727, 6943907, 20831721]

約数ペア:

[(1, 20831721), (3, 6943907), (23, 905727), (31, 671991), (69, 301909), (93, 223997), (713, 29217), (2139, 9739)]