25272261

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:566

約数の個数: 48

約数和(自身を含む): 45027840

約数和(自身を除く): 19755579

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 387, 399, 491, 817, 903, 1197, 1473, 2451, 2709, 3437, 4419, 5719, 7353, 9329, 10311, 17157, 21113, 27987, 30933, 51471, 63339, 65303, 83961, 147791, 190017, 195909, 401147, 443373, 587727, 1203441, 1330119, 2808029, 3610323, 8424087, 25272261]

約数ペア:

[(1, 25272261), (3, 8424087), (7, 3610323), (9, 2808029), (19, 1330119), (21, 1203441), (43, 587727), (57, 443373), (63, 401147), (129, 195909), (133, 190017), (171, 147791), (301, 83961), (387, 65303), (399, 63339), (491, 51471), (817, 30933), (903, 27987), (1197, 21113), (1473, 17157), (2451, 10311), (2709, 9329), (3437, 7353), (4419, 5719)]