3947825

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1327}}^1$

素因数の和:1361

約数の個数: 24

約数和(自身を含む): 5928192

約数和(自身を除く): 1980367

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 1327, 2975, 6635, 9289, 22559, 33175, 46445, 112795, 157913, 232225, 563975, 789565, 3947825]

約数ペア:

[(1, 3947825), (5, 789565), (7, 563975), (17, 232225), (25, 157913), (35, 112795), (85, 46445), (119, 33175), (175, 22559), (425, 9289), (595, 6635), (1327, 2975)]