19356788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4943}}^1$

素因数の和:5047

約数の個数: 24

約数和(自身を含む): 37376640

約数和(自身を除く): 18019852

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 4943, 9886, 19772, 54373, 108746, 217492, 439927, 879854, 1759708, 4839197, 9678394, 19356788]

約数ペア:

[(1, 19356788), (2, 9678394), (4, 4839197), (11, 1759708), (22, 879854), (44, 439927), (89, 217492), (178, 108746), (356, 54373), (979, 19772), (1958, 9886), (3916, 4943)]