21010249

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 24665472

約数和(自身を除く): 3655223

約数列:

[1, 13, 17, 71, 103, 169, 221, 923, 1207, 1339, 1751, 2873, 7313, 11999, 15691, 17407, 22763, 95069, 124321, 203983, 295919, 1235897, 1616173, 21010249]

約数ペア:

[(1, 21010249), (13, 1616173), (17, 1235897), (71, 295919), (103, 203983), (169, 124321), (221, 95069), (923, 22763), (1207, 17407), (1339, 15691), (1751, 11999), (2873, 7313)]