201720431

素因数分解:

${\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{7901}}^1$

素因数の和:8134

約数の個数: 12

約数和(自身を含む): 222804792

約数和(自身を除く): 21084361

約数列:

[1, 11, 121, 211, 2321, 7901, 25531, 86911, 956021, 1667111, 18338221, 201720431]

約数ペア:

[(1, 201720431), (11, 18338221), (121, 1667111), (211, 956021), (2321, 86911), (7901, 25531)]