19745224

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{449}}^1$

素因数の和:717

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 19134776

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 239, 449, 478, 898, 956, 1796, 1912, 3592, 5497, 10327, 10994, 20654, 21988, 41308, 43976, 82616, 107311, 214622, 429244, 858488, 2468153, 4936306, 9872612, 19745224]

約数ペア:

[(1, 19745224), (2, 9872612), (4, 4936306), (8, 2468153), (23, 858488), (46, 429244), (92, 214622), (184, 107311), (239, 82616), (449, 43976), (478, 41308), (898, 21988), (956, 20654), (1796, 10994), (1912, 10327), (3592, 5497)]