20658916

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1223}}^1$

素因数の和:1371

約数の個数: 24

約数和(自身を含む): 37425024

約数和(自身を除く): 16766108

約数列:

[1, 2, 4, 41, 82, 103, 164, 206, 412, 1223, 2446, 4223, 4892, 8446, 16892, 50143, 100286, 125969, 200572, 251938, 503876, 5164729, 10329458, 20658916]

約数ペア:

[(1, 20658916), (2, 10329458), (4, 5164729), (41, 503876), (82, 251938), (103, 200572), (164, 125969), (206, 100286), (412, 50143), (1223, 16892), (2446, 8446), (4223, 4892)]