19775798

素因数分解:

$2^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2137}}^1$

素因数の和:2807

約数の個数: 16

約数和(自身を含む): 33968544

約数和(自身を除く): 14192746

約数列:

[1, 2, 7, 14, 661, 1322, 2137, 4274, 4627, 9254, 14959, 29918, 1412557, 2825114, 9887899, 19775798]

約数ペア:

[(1, 19775798), (2, 9887899), (7, 2825114), (14, 1412557), (661, 29918), (1322, 14959), (2137, 9254), (4274, 4627)]