87721728311

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1\times {\mathrm{21767}}^1$

素因数の和:22143

約数の個数: 32

約数和(自身を含む): 106757237760

約数和(自身を除く): 19035509449

約数列:

[1, 7, 19, 133, 157, 193, 1099, 1351, 2983, 3667, 20881, 21767, 25669, 30301, 152369, 212107, 413573, 575719, 2895011, 3417419, 4030033, 4201031, 23921933, 29407217, 64930961, 79819589, 454516727, 558737123, 659561867, 4616933069, 12531675473, 87721728311]

約数ペア:

[(1, 87721728311), (7, 12531675473), (19, 4616933069), (133, 659561867), (157, 558737123), (193, 454516727), (1099, 79819589), (1351, 64930961), (2983, 29407217), (3667, 23921933), (20881, 4201031), (21767, 4030033), (25669, 3417419), (30301, 2895011), (152369, 575719), (212107, 413573)]