25727121

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21493}}^1$

素因数の和:21525

約数の個数: 24

約数和(自身を含む): 44707520

約数和(自身を除く): 18980399

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21493, 64479, 150451, 193437, 408367, 451353, 1225101, 1354059, 2858569, 3675303, 8575707, 25727121]

約数ペア:

[(1, 25727121), (3, 8575707), (7, 3675303), (9, 2858569), (19, 1354059), (21, 1225101), (57, 451353), (63, 408367), (133, 193437), (171, 150451), (399, 64479), (1197, 21493)]