19829516

素因数分解:

$2^2\times 7^3\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:271

約数の個数: 48

約数和(自身を含む): 41160000

約数和(自身を除く): 21330484

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 149, 194, 196, 298, 343, 388, 596, 679, 686, 1043, 1358, 1372, 2086, 2716, 4172, 4753, 7301, 9506, 14453, 14602, 19012, 28906, 29204, 33271, 51107, 57812, 66542, 101171, 102214, 133084, 202342, 204428, 404684, 708197, 1416394, 2832788, 4957379, 9914758, 19829516]

約数ペア:

[(1, 19829516), (2, 9914758), (4, 4957379), (7, 2832788), (14, 1416394), (28, 708197), (49, 404684), (97, 204428), (98, 202342), (149, 133084), (194, 102214), (196, 101171), (298, 66542), (343, 57812), (388, 51107), (596, 33271), (679, 29204), (686, 28906), (1043, 19012), (1358, 14602), (1372, 14453), (2086, 9506), (2716, 7301), (4172, 4753)]