217309521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:486

約数の個数: 64

約数和(自身を含む): 365783040

約数和(自身を除く): 148473519

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 83, 143, 187, 221, 249, 359, 429, 561, 663, 913, 1077, 1079, 1411, 2431, 2739, 3237, 3949, 4233, 4667, 6103, 7293, 11847, 11869, 14001, 15521, 18309, 18343, 29797, 35607, 46563, 51337, 55029, 67133, 79339, 89391, 154011, 201399, 201773, 238017, 327767, 387361, 506549, 605319, 872729, 983301, 1162083, 1519647, 2618187, 4260971, 5572039, 6585137, 12782913, 16716117, 19755411, 72436507, 217309521]

約数ペア:

[(1, 217309521), (3, 72436507), (11, 19755411), (13, 16716117), (17, 12782913), (33, 6585137), (39, 5572039), (51, 4260971), (83, 2618187), (143, 1519647), (187, 1162083), (221, 983301), (249, 872729), (359, 605319), (429, 506549), (561, 387361), (663, 327767), (913, 238017), (1077, 201773), (1079, 201399), (1411, 154011), (2431, 89391), (2739, 79339), (3237, 67133), (3949, 55029), (4233, 51337), (4667, 46563), (6103, 35607), (7293, 29797), (11847, 18343), (11869, 18309), (14001, 15521)]