25495197

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1987}}^1$

素因数の和:2057

約数の個数: 32

約数和(自身を含む): 42749952

約数和(自身を除く): 17254755

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1833, 1987, 4277, 5961, 12831, 13909, 25831, 41727, 77493, 93389, 180817, 280167, 542451, 653723, 1214057, 1961169, 3642171, 8498399, 25495197]

約数ペア:

[(1, 25495197), (3, 8498399), (7, 3642171), (13, 1961169), (21, 1214057), (39, 653723), (47, 542451), (91, 280167), (141, 180817), (273, 93389), (329, 77493), (611, 41727), (987, 25831), (1833, 13909), (1987, 12831), (4277, 5961)]