21519036644

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^2\times {\mathrm{3533}}^1$

素因数の和:3777

約数の個数: 72

約数和(自身を含む): 45743530560

約数和(自身を除く): 24224493916

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 107, 133, 214, 266, 428, 532, 749, 1498, 2033, 2996, 3533, 4066, 7066, 8132, 11449, 14132, 14231, 22898, 24731, 28462, 45796, 49462, 56924, 67127, 80143, 98924, 134254, 160286, 217531, 268508, 320572, 378031, 435062, 469889, 756062, 870124, 939778, 1512124, 1522717, 1879556, 2646217, 3045434, 5292434, 6090868, 7182589, 10584868, 14365178, 28730356, 40449317, 50278123, 80898634, 100556246, 161797268, 201112492, 283145219, 566290438, 768537023, 1132580876, 1537074046, 3074148092, 5379759161, 10759518322, 21519036644]

約数ペア:

[(1, 21519036644), (2, 10759518322), (4, 5379759161), (7, 3074148092), (14, 1537074046), (19, 1132580876), (28, 768537023), (38, 566290438), (76, 283145219), (107, 201112492), (133, 161797268), (214, 100556246), (266, 80898634), (428, 50278123), (532, 40449317), (749, 28730356), (1498, 14365178), (2033, 10584868), (2996, 7182589), (3533, 6090868), (4066, 5292434), (7066, 3045434), (8132, 2646217), (11449, 1879556), (14132, 1522717), (14231, 1512124), (22898, 939778), (24731, 870124), (28462, 756062), (45796, 469889), (49462, 435062), (56924, 378031), (67127, 320572), (80143, 268508), (98924, 217531), (134254, 160286)]