18191873

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 22969728

約数和(自身を除く): 4777855

約数列:

[1, 7, 19, 23, 133, 161, 313, 361, 437, 2191, 2527, 3059, 5947, 7199, 8303, 41629, 50393, 58121, 112993, 136781, 790951, 957467, 2598839, 18191873]

約数ペア:

[(1, 18191873), (7, 2598839), (19, 957467), (23, 790951), (133, 136781), (161, 112993), (313, 58121), (361, 50393), (437, 41629), (2191, 8303), (2527, 7199), (3059, 5947)]