81792321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 134830080

約数和(自身を除く): 53037759

約数列:

[1, 3, 13, 17, 19, 39, 43, 51, 57, 129, 151, 221, 247, 323, 453, 559, 663, 731, 741, 817, 969, 1677, 1963, 2193, 2451, 2567, 2869, 4199, 5889, 6493, 7701, 8607, 9503, 10621, 12597, 13889, 19479, 28509, 31863, 33371, 37297, 41667, 48773, 84409, 100113, 110381, 111891, 123367, 146319, 180557, 253227, 331143, 370101, 541671, 634049, 1434953, 1603771, 1902147, 2097239, 4304859, 4811313, 6291717, 27264107, 81792321]

約数ペア:

[(1, 81792321), (3, 27264107), (13, 6291717), (17, 4811313), (19, 4304859), (39, 2097239), (43, 1902147), (51, 1603771), (57, 1434953), (129, 634049), (151, 541671), (221, 370101), (247, 331143), (323, 253227), (453, 180557), (559, 146319), (663, 123367), (731, 111891), (741, 110381), (817, 100113), (969, 84409), (1677, 48773), (1963, 41667), (2193, 37297), (2451, 33371), (2567, 31863), (2869, 28509), (4199, 19479), (5889, 13889), (6493, 12597), (7701, 10621), (8607, 9503)]