25983657

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 44957952

約数和(自身を除く): 18974295

約数列:

[1, 3, 7, 9, 21, 37, 63, 71, 111, 157, 213, 259, 333, 471, 497, 639, 777, 1099, 1413, 1491, 2331, 2627, 3297, 4473, 5809, 7881, 9891, 11147, 17427, 18389, 23643, 33441, 40663, 52281, 55167, 78029, 100323, 121989, 165501, 234087, 365967, 412439, 702261, 1237317, 2887073, 3711951, 8661219, 25983657]

約数ペア:

[(1, 25983657), (3, 8661219), (7, 3711951), (9, 2887073), (21, 1237317), (37, 702261), (63, 412439), (71, 365967), (111, 234087), (157, 165501), (213, 121989), (259, 100323), (333, 78029), (471, 55167), (497, 52281), (639, 40663), (777, 33441), (1099, 23643), (1413, 18389), (1491, 17427), (2331, 11147), (2627, 9891), (3297, 7881), (4473, 5809)]