25724727

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21491}}^1$

素因数の和:21523

約数の個数: 24

約数和(自身を含む): 44703360

約数和(自身を除く): 18978633

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 21491, 64473, 150437, 193419, 408329, 451311, 1224987, 1353933, 2858303, 3674961, 8574909, 25724727]

約数ペア:

[(1, 25724727), (3, 8574909), (7, 3674961), (9, 2858303), (19, 1353933), (21, 1224987), (57, 451311), (63, 408329), (133, 193419), (171, 150437), (399, 64473), (1197, 21491)]