21294867

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{15739}}^1$

素因数の和:15794

約数の個数: 16

約数和(自身を含む): 31731840

約数和(自身を除く): 10436973

約数列:

[1, 3, 11, 33, 41, 123, 451, 1353, 15739, 47217, 173129, 519387, 645299, 1935897, 7098289, 21294867]

約数ペア:

[(1, 21294867), (3, 7098289), (11, 1935897), (33, 645299), (41, 519387), (123, 173129), (451, 47217), (1353, 15739)]