25787727

素因数分解:

$3^4\times 7^1\times {\mathrm{45481}}^1$

素因数の和:45500

約数の個数: 20

約数和(自身を含む): 44026576

約数和(自身を除く): 18238849

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 45481, 136443, 318367, 409329, 955101, 1227987, 2865303, 3683961, 8595909, 25787727]

約数ペア:

[(1, 25787727), (3, 8595909), (7, 3683961), (9, 2865303), (21, 1227987), (27, 955101), (63, 409329), (81, 318367), (189, 136443), (567, 45481)]