85811999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1601}}^1$

素因数の和:1671

約数の個数: 32

約数和(自身を含む): 114831360

約数和(自身を除く): 29019361

約数列:

[1, 7, 13, 19, 31, 91, 133, 217, 247, 403, 589, 1601, 1729, 2821, 4123, 7657, 11207, 20813, 30419, 49631, 53599, 145691, 212933, 347417, 395447, 645203, 942989, 2768129, 4516421, 6600923, 12258857, 85811999]

約数ペア:

[(1, 85811999), (7, 12258857), (13, 6600923), (19, 4516421), (31, 2768129), (91, 942989), (133, 645203), (217, 395447), (247, 347417), (403, 212933), (589, 145691), (1601, 53599), (1729, 49631), (2821, 30419), (4123, 20813), (7657, 11207)]