19817595

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 40995840

約数和(自身を除く): 21178245

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 67, 105, 135, 189, 201, 313, 315, 335, 469, 603, 939, 945, 1005, 1407, 1565, 1809, 2191, 2345, 2817, 3015, 4221, 4695, 6573, 7035, 8451, 9045, 10955, 12663, 14085, 19719, 20971, 21105, 32865, 42255, 59157, 62913, 63315, 98595, 104855, 146797, 188739, 295785, 314565, 440391, 566217, 733985, 943695, 1321173, 2201955, 2831085, 3963519, 6605865, 19817595]

約数ペア:

[(1, 19817595), (3, 6605865), (5, 3963519), (7, 2831085), (9, 2201955), (15, 1321173), (21, 943695), (27, 733985), (35, 566217), (45, 440391), (63, 314565), (67, 295785), (105, 188739), (135, 146797), (189, 104855), (201, 98595), (313, 63315), (315, 62913), (335, 59157), (469, 42255), (603, 32865), (939, 21105), (945, 20971), (1005, 19719), (1407, 14085), (1565, 12663), (1809, 10955), (2191, 9045), (2345, 8451), (2817, 7035), (3015, 6573), (4221, 4695)]