21131498136

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{1721}}^1$

素因数の和:1994

約数の個数: 192

約数和(自身を含む): 62967754080

約数和(自身を除く): 41836255944

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 53, 56, 84, 98, 106, 147, 159, 168, 196, 197, 212, 294, 318, 371, 392, 394, 424, 588, 591, 636, 742, 788, 1113, 1176, 1182, 1272, 1379, 1484, 1576, 1721, 2226, 2364, 2597, 2758, 2968, 3442, 4137, 4452, 4728, 5163, 5194, 5516, 6884, 7791, 8274, 8904, 9653, 10326, 10388, 10441, 11032, 12047, 13768, 15582, 16548, 19306, 20652, 20776, 20882, 24094, 28959, 31164, 31323, 33096, 36141, 38612, 41304, 41764, 48188, 57918, 62328, 62646, 72282, 73087, 77224, 83528, 84329, 91213, 96376, 115836, 125292, 144564, 146174, 168658, 182426, 219261, 231672, 250584, 252987, 273639, 289128, 292348, 337316, 339037, 364852, 438522, 505974, 511609, 547278, 584696, 638491, 674632, 678074, 729704, 877044, 1011948, 1017111, 1023218, 1094556, 1276982, 1356148, 1534827, 1754088, 1915473, 2023896, 2034222, 2046436, 2189112, 2373259, 2553964, 2712296, 3069654, 3830946, 4068444, 4092872, 4469437, 4746518, 5107928, 6139308, 7119777, 7661892, 8136888, 8938874, 9493036, 12278616, 13408311, 14239554, 15323784, 16612813, 17877748, 17968961, 18986072, 26816622, 28479108, 33225626, 35755496, 35937922, 49838439, 53633244, 53906883, 56958216, 66451252, 71875844, 99676878, 107266488, 107813766, 125782727, 132902504, 143751688, 199353756, 215627532, 251565454, 377348181, 398707512, 431255064, 503130908, 754696362, 880479089, 1006261816, 1509392724, 1760958178, 2641437267, 3018785448, 3521916356, 5282874534, 7043832712, 10565749068, 21131498136]

約数ペア:

[(1, 21131498136), (2, 10565749068), (3, 7043832712), (4, 5282874534), (6, 3521916356), (7, 3018785448), (8, 2641437267), (12, 1760958178), (14, 1509392724), (21, 1006261816), (24, 880479089), (28, 754696362), (42, 503130908), (49, 431255064), (53, 398707512), (56, 377348181), (84, 251565454), (98, 215627532), (106, 199353756), (147, 143751688), (159, 132902504), (168, 125782727), (196, 107813766), (197, 107266488), (212, 99676878), (294, 71875844), (318, 66451252), (371, 56958216), (392, 53906883), (394, 53633244), (424, 49838439), (588, 35937922), (591, 35755496), (636, 33225626), (742, 28479108), (788, 26816622), (1113, 18986072), (1176, 17968961), (1182, 17877748), (1272, 16612813), (1379, 15323784), (1484, 14239554), (1576, 13408311), (1721, 12278616), (2226, 9493036), (2364, 8938874), (2597, 8136888), (2758, 7661892), (2968, 7119777), (3442, 6139308), (4137, 5107928), (4452, 4746518), (4728, 4469437), (5163, 4092872), (5194, 4068444), (5516, 3830946), (6884, 3069654), (7791, 2712296), (8274, 2553964), (8904, 2373259), (9653, 2189112), (10326, 2046436), (10388, 2034222), (10441, 2023896), (11032, 1915473), (12047, 1754088), (13768, 1534827), (15582, 1356148), (16548, 1276982), (19306, 1094556), (20652, 1023218), (20776, 1017111), (20882, 1011948), (24094, 877044), (28959, 729704), (31164, 678074), (31323, 674632), (33096, 638491), (36141, 584696), (38612, 547278), (41304, 511609), (41764, 505974), (48188, 438522), (57918, 364852), (62328, 339037), (62646, 337316), (72282, 292348), (73087, 289128), (77224, 273639), (83528, 252987), (84329, 250584), (91213, 231672), (96376, 219261), (115836, 182426), (125292, 168658), (144564, 146174)]