19962943

素因数分解:

$7^3\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:93

約数の個数: 48

約数和(自身を含む): 28302400

約数和(自身を除く): 8339457

約数列:

[1, 7, 11, 13, 37, 49, 77, 91, 121, 143, 259, 343, 407, 481, 539, 637, 847, 1001, 1573, 1813, 2849, 3367, 3773, 4459, 4477, 5291, 5929, 7007, 11011, 12691, 19943, 23569, 31339, 37037, 41503, 49049, 58201, 77077, 139601, 164983, 219373, 259259, 407407, 539539, 1535611, 1814813, 2851849, 19962943]

約数ペア:

[(1, 19962943), (7, 2851849), (11, 1814813), (13, 1535611), (37, 539539), (49, 407407), (77, 259259), (91, 219373), (121, 164983), (143, 139601), (259, 77077), (343, 58201), (407, 49049), (481, 41503), (539, 37037), (637, 31339), (847, 23569), (1001, 19943), (1573, 12691), (1813, 11011), (2849, 7007), (3367, 5929), (3773, 5291), (4459, 4477)]