491301503

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 646750272

約数和(自身を除く): 155448769

約数列:

[1, 7, 11, 37, 61, 77, 121, 257, 259, 407, 427, 671, 847, 1799, 2257, 2827, 2849, 4477, 4697, 7381, 9509, 15677, 15799, 19789, 24827, 31097, 31339, 51667, 66563, 104599, 109739, 172447, 173789, 217679, 273097, 580049, 732193, 1150589, 1207129, 1896917, 1911679, 4060343, 6380539, 8054123, 13278419, 44663773, 70185929, 491301503]

約数ペア:

[(1, 491301503), (7, 70185929), (11, 44663773), (37, 13278419), (61, 8054123), (77, 6380539), (121, 4060343), (257, 1911679), (259, 1896917), (407, 1207129), (427, 1150589), (671, 732193), (847, 580049), (1799, 273097), (2257, 217679), (2827, 173789), (2849, 172447), (4477, 109739), (4697, 104599), (7381, 66563), (9509, 51667), (15677, 31339), (15799, 31097), (19789, 24827)]