71855511

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1979}}^1$

素因数の和:2028

約数の個数: 48

約数和(自身を含む): 126403200

約数和(自身を除く): 54547689

約数列:

[1, 3, 7, 13, 19, 21, 39, 49, 57, 91, 133, 147, 247, 273, 399, 637, 741, 931, 1729, 1911, 1979, 2793, 5187, 5937, 12103, 13853, 25727, 36309, 37601, 41559, 77181, 96971, 112803, 180089, 263207, 290913, 488813, 540267, 789621, 1260623, 1466439, 1842449, 3421691, 3781869, 5527347, 10265073, 23951837, 71855511]

約数ペア:

[(1, 71855511), (3, 23951837), (7, 10265073), (13, 5527347), (19, 3781869), (21, 3421691), (39, 1842449), (49, 1466439), (57, 1260623), (91, 789621), (133, 540267), (147, 488813), (247, 290913), (273, 263207), (399, 180089), (637, 112803), (741, 96971), (931, 77181), (1729, 41559), (1911, 37601), (1979, 36309), (2793, 25727), (5187, 13853), (5937, 12103)]