25499991

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{401}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 38900736

約数和(自身を除く): 13400745

約数列:

[1, 3, 11, 33, 41, 47, 123, 141, 401, 451, 517, 1203, 1353, 1551, 1927, 4411, 5781, 13233, 16441, 18847, 21197, 49323, 56541, 63591, 180851, 207317, 542553, 621951, 772727, 2318181, 8499997, 25499991]

約数ペア:

[(1, 25499991), (3, 8499997), (11, 2318181), (33, 772727), (41, 621951), (47, 542553), (123, 207317), (141, 180851), (401, 63591), (451, 56541), (517, 49323), (1203, 21197), (1353, 18847), (1551, 16441), (1927, 13233), (4411, 5781)]