71388681

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13763}}^1$

素因数の和:13805

約数の個数: 32

約数和(自身を含む): 123325440

約数和(自身を除く): 51936759

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 13763, 41289, 96341, 178919, 261497, 289023, 536757, 784491, 1252433, 1830479, 3399461, 3757299, 5491437, 10198383, 23796227, 71388681]

約数ペア:

[(1, 71388681), (3, 23796227), (7, 10198383), (13, 5491437), (19, 3757299), (21, 3399461), (39, 1830479), (57, 1252433), (91, 784491), (133, 536757), (247, 289023), (273, 261497), (399, 178919), (741, 96341), (1729, 41289), (5187, 13763)]