19938156

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{2447}}^1$

素因数の和:2558

約数の個数: 48

約数和(自身を含む): 53738496

約数和(自身を除く): 33800340

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 97, 194, 291, 388, 582, 679, 1164, 1358, 2037, 2447, 2716, 4074, 4894, 7341, 8148, 9788, 14682, 17129, 29364, 34258, 51387, 68516, 102774, 205548, 237359, 474718, 712077, 949436, 1424154, 1661513, 2848308, 3323026, 4984539, 6646052, 9969078, 19938156]

約数ペア:

[(1, 19938156), (2, 9969078), (3, 6646052), (4, 4984539), (6, 3323026), (7, 2848308), (12, 1661513), (14, 1424154), (21, 949436), (28, 712077), (42, 474718), (84, 237359), (97, 205548), (194, 102774), (291, 68516), (388, 51387), (582, 34258), (679, 29364), (1164, 17129), (1358, 14682), (2037, 9788), (2447, 8148), (2716, 7341), (4074, 4894)]