20891431

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{5261}}^1$

素因数の和:5310

約数の個数: 12

約数和(自身を含む): 24057864

約数和(自身を除く): 3166433

約数列:

[1, 11, 19, 209, 361, 3971, 5261, 57871, 99959, 1099549, 1899221, 20891431]

約数ペア:

[(1, 20891431), (11, 1899221), (19, 1099549), (209, 99959), (361, 57871), (3971, 5261)]