21656040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 192

約数和(自身を含む): 78796800

約数和(自身を除く): 57140760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 49, 56, 58, 60, 70, 84, 87, 98, 105, 116, 120, 127, 140, 145, 147, 168, 174, 196, 203, 210, 232, 245, 254, 280, 290, 294, 348, 381, 392, 406, 420, 435, 490, 508, 580, 588, 609, 635, 696, 735, 762, 812, 840, 870, 889, 980, 1015, 1016, 1160, 1176, 1218, 1270, 1421, 1470, 1524, 1624, 1740, 1778, 1905, 1960, 2030, 2436, 2540, 2667, 2842, 2940, 3045, 3048, 3480, 3556, 3683, 3810, 4060, 4263, 4445, 4872, 5080, 5334, 5684, 5880, 6090, 6223, 7105, 7112, 7366, 7620, 8120, 8526, 8890, 10668, 11049, 11368, 12180, 12446, 13335, 14210, 14732, 15240, 17052, 17780, 18415, 18669, 21315, 21336, 22098, 24360, 24892, 25781, 26670, 28420, 29464, 31115, 34104, 35560, 36830, 37338, 42630, 44196, 49784, 51562, 53340, 55245, 56840, 62230, 73660, 74676, 77343, 85260, 88392, 93345, 103124, 106680, 110490, 124460, 128905, 147320, 149352, 154686, 170520, 180467, 186690, 206248, 220980, 248920, 257810, 309372, 360934, 373380, 386715, 441960, 515620, 541401, 618744, 721868, 746760, 773430, 902335, 1031240, 1082802, 1443736, 1546860, 1804670, 2165604, 2707005, 3093720, 3609340, 4331208, 5414010, 7218680, 10828020, 21656040]

約数ペア:

[(1, 21656040), (2, 10828020), (3, 7218680), (4, 5414010), (5, 4331208), (6, 3609340), (7, 3093720), (8, 2707005), (10, 2165604), (12, 1804670), (14, 1546860), (15, 1443736), (20, 1082802), (21, 1031240), (24, 902335), (28, 773430), (29, 746760), (30, 721868), (35, 618744), (40, 541401), (42, 515620), (49, 441960), (56, 386715), (58, 373380), (60, 360934), (70, 309372), (84, 257810), (87, 248920), (98, 220980), (105, 206248), (116, 186690), (120, 180467), (127, 170520), (140, 154686), (145, 149352), (147, 147320), (168, 128905), (174, 124460), (196, 110490), (203, 106680), (210, 103124), (232, 93345), (245, 88392), (254, 85260), (280, 77343), (290, 74676), (294, 73660), (348, 62230), (381, 56840), (392, 55245), (406, 53340), (420, 51562), (435, 49784), (490, 44196), (508, 42630), (580, 37338), (588, 36830), (609, 35560), (635, 34104), (696, 31115), (735, 29464), (762, 28420), (812, 26670), (840, 25781), (870, 24892), (889, 24360), (980, 22098), (1015, 21336), (1016, 21315), (1160, 18669), (1176, 18415), (1218, 17780), (1270, 17052), (1421, 15240), (1470, 14732), (1524, 14210), (1624, 13335), (1740, 12446), (1778, 12180), (1905, 11368), (1960, 11049), (2030, 10668), (2436, 8890), (2540, 8526), (2667, 8120), (2842, 7620), (2940, 7366), (3045, 7112), (3048, 7105), (3480, 6223), (3556, 6090), (3683, 5880), (3810, 5684), (4060, 5334), (4263, 5080), (4445, 4872)]