20523454

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 38610432

約数和(自身を除く): 18086978

約数列:

[1, 2, 7, 14, 17, 34, 49, 97, 98, 119, 127, 194, 238, 254, 679, 833, 889, 1358, 1649, 1666, 1778, 2159, 3298, 4318, 4753, 6223, 9506, 11543, 12319, 12446, 15113, 23086, 24638, 30226, 80801, 86233, 105791, 161602, 172466, 209423, 211582, 418846, 603631, 1207262, 1465961, 2931922, 10261727, 20523454]

約数ペア:

[(1, 20523454), (2, 10261727), (7, 2931922), (14, 1465961), (17, 1207262), (34, 603631), (49, 418846), (97, 211582), (98, 209423), (119, 172466), (127, 161602), (194, 105791), (238, 86233), (254, 80801), (679, 30226), (833, 24638), (889, 23086), (1358, 15113), (1649, 12446), (1666, 12319), (1778, 11543), (2159, 9506), (3298, 6223), (4318, 4753)]