18397445

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 24820992

約数和(自身を除く): 6423547

約数列:

[1, 5, 11, 47, 55, 121, 235, 517, 605, 647, 2585, 3235, 5687, 7117, 28435, 30409, 35585, 78287, 152045, 334499, 391435, 1672495, 3679489, 18397445]

約数ペア:

[(1, 18397445), (5, 3679489), (11, 1672495), (47, 391435), (55, 334499), (121, 152045), (235, 78287), (517, 35585), (605, 30409), (647, 28435), (2585, 7117), (3235, 5687)]