21807071

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{2089}}^1$

素因数の和:2186

約数の個数: 16

約数和(自身を含む): 25982880

約数和(自身を除く): 4175809

約数列:

[1, 11, 13, 73, 143, 803, 949, 2089, 10439, 22979, 27157, 152497, 298727, 1677467, 1982461, 21807071]

約数ペア:

[(1, 21807071), (11, 1982461), (13, 1677467), (73, 298727), (143, 152497), (803, 27157), (949, 22979), (2089, 10439)]