21086427320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{607}}^1\times {\mathrm{124067}}^1$

素因数の和:124692

約数の個数: 64

約数和(自身を含む): 54312007680

約数和(自身を除く): 33225580360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 607, 1214, 2428, 3035, 4249, 4856, 6070, 8498, 12140, 16996, 21245, 24280, 33992, 42490, 84980, 124067, 169960, 248134, 496268, 620335, 868469, 992536, 1240670, 1736938, 2481340, 3473876, 4342345, 4962680, 6947752, 8684690, 17369380, 34738760, 75308669, 150617338, 301234676, 376543345, 527160683, 602469352, 753086690, 1054321366, 1506173380, 2108642732, 2635803415, 3012346760, 4217285464, 5271606830, 10543213660, 21086427320]

約数ペア:

[(1, 21086427320), (2, 10543213660), (4, 5271606830), (5, 4217285464), (7, 3012346760), (8, 2635803415), (10, 2108642732), (14, 1506173380), (20, 1054321366), (28, 753086690), (35, 602469352), (40, 527160683), (56, 376543345), (70, 301234676), (140, 150617338), (280, 75308669), (607, 34738760), (1214, 17369380), (2428, 8684690), (3035, 6947752), (4249, 4962680), (4856, 4342345), (6070, 3473876), (8498, 2481340), (12140, 1736938), (16996, 1240670), (21245, 992536), (24280, 868469), (33992, 620335), (42490, 496268), (84980, 248134), (124067, 169960)]