19967398

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{12433}}^1$

素因数の和:12519

約数の個数: 16

約数和(自身を含む): 33124176

約数和(自身を除く): 13156778

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 12433, 24866, 136763, 273526, 907609, 1815218, 9983699, 19967398]

約数ペア:

[(1, 19967398), (2, 9983699), (11, 1815218), (22, 907609), (73, 273526), (146, 136763), (803, 24866), (1606, 12433)]