21344878

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1$

素因数の和:707

約数の個数: 16

約数和(自身を含む): 32489424

約数和(自身を除く): 11144546

約数列:

[1, 2, 131, 257, 262, 317, 514, 634, 33667, 41527, 67334, 81469, 83054, 162938, 10672439, 21344878]

約数ペア:

[(1, 21344878), (2, 10672439), (131, 162938), (257, 83054), (262, 81469), (317, 67334), (514, 41527), (634, 33667)]