25921278

素因数分解:

$2^1\times 3^2\times {\mathrm{73}}^1\times {\mathrm{19727}}^1$

素因数の和:19808

約数の個数: 24

約数和(自身を含む): 56935008

約数和(自身を除く): 31013730

約数列:

[1, 2, 3, 6, 9, 18, 73, 146, 219, 438, 657, 1314, 19727, 39454, 59181, 118362, 177543, 355086, 1440071, 2880142, 4320213, 8640426, 12960639, 25921278]

約数ペア:

[(1, 25921278), (2, 12960639), (3, 8640426), (6, 4320213), (9, 2880142), (18, 1440071), (73, 355086), (146, 177543), (219, 118362), (438, 59181), (657, 39454), (1314, 19727)]