21293877

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37957}}^1$

素因数の和:37988

約数の個数: 16

約数和(自身を含む): 32795712

約数和(自身を除く): 11501835

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37957, 113871, 417527, 645269, 1252581, 1935807, 7097959, 21293877]

約数ペア:

[(1, 21293877), (3, 7097959), (11, 1935807), (17, 1252581), (33, 645269), (51, 417527), (187, 113871), (561, 37957)]