18764889

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 32514048

約数和(自身を除く): 13749159

約数列:

[1, 3, 11, 13, 17, 31, 33, 39, 51, 83, 93, 143, 187, 221, 249, 341, 403, 429, 527, 561, 663, 913, 1023, 1079, 1209, 1411, 1581, 2431, 2573, 2739, 3237, 4233, 4433, 5797, 6851, 7293, 7719, 11869, 13299, 15521, 17391, 18343, 20553, 28303, 33449, 35607, 43741, 46563, 55029, 75361, 84909, 100347, 131223, 201773, 226083, 367939, 481151, 568633, 605319, 1103817, 1443453, 1705899, 6254963, 18764889]

約数ペア:

[(1, 18764889), (3, 6254963), (11, 1705899), (13, 1443453), (17, 1103817), (31, 605319), (33, 568633), (39, 481151), (51, 367939), (83, 226083), (93, 201773), (143, 131223), (187, 100347), (221, 84909), (249, 75361), (341, 55029), (403, 46563), (429, 43741), (527, 35607), (561, 33449), (663, 28303), (913, 20553), (1023, 18343), (1079, 17391), (1209, 15521), (1411, 13299), (1581, 11869), (2431, 7719), (2573, 7293), (2739, 6851), (3237, 5797), (4233, 4433)]