19867826

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 32

約数和(自身を含む): 33566400

約数和(自身を除く): 13698574

約数列:

[1, 2, 11, 22, 73, 89, 139, 146, 178, 278, 803, 979, 1529, 1606, 1958, 3058, 6497, 10147, 12371, 12994, 20294, 24742, 71467, 111617, 136081, 142934, 223234, 272162, 903083, 1806166, 9933913, 19867826]

約数ペア:

[(1, 19867826), (2, 9933913), (11, 1806166), (22, 903083), (73, 272162), (89, 223234), (139, 142934), (146, 136081), (178, 111617), (278, 71467), (803, 24742), (979, 20294), (1529, 12994), (1606, 12371), (1958, 10147), (3058, 6497)]