21179378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{7027}}^1$

素因数の和:7177

約数の個数: 16

約数和(自身を含む): 34915104

約数和(自身を除く): 13735726

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 7027, 14054, 77297, 154594, 962699, 1925398, 10589689, 21179378]

約数ペア:

[(1, 21179378), (2, 10589689), (11, 1925398), (22, 962699), (137, 154594), (274, 77297), (1507, 14054), (3014, 7027)]