20849479

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2657}}^1$

素因数の和:2742

約数の個数: 16

約数和(自身を含む): 25516800

約数和(自身を除く): 4667321

約数列:

[1, 7, 19, 59, 133, 413, 1121, 2657, 7847, 18599, 50483, 156763, 353381, 1097341, 2978497, 20849479]

約数ペア:

[(1, 20849479), (7, 2978497), (19, 1097341), (59, 353381), (133, 156763), (413, 50483), (1121, 18599), (2657, 7847)]