21510810762

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{53}}^2\times {\mathrm{61}}^2$

素因数の和:254

約数の個数: 144

約数和(自身を含む): 51987499200

約数和(自身を除く): 30476688438

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 53, 61, 98, 106, 122, 147, 159, 183, 294, 318, 343, 366, 371, 427, 686, 742, 854, 1029, 1113, 1281, 2058, 2226, 2562, 2597, 2809, 2989, 3233, 3721, 5194, 5618, 5978, 6466, 7442, 7791, 8427, 8967, 9699, 11163, 15582, 16854, 17934, 18179, 19398, 19663, 20923, 22326, 22631, 26047, 36358, 39326, 41846, 45262, 52094, 54537, 58989, 62769, 67893, 78141, 109074, 117978, 125538, 135786, 137641, 156282, 158417, 171349, 182329, 197213, 275282, 316834, 342698, 364658, 394426, 412923, 475251, 514047, 546987, 591639, 825846, 950502, 963487, 1028094, 1093974, 1108919, 1183278, 1199443, 1276303, 1380491, 1926974, 2217838, 2398886, 2552606, 2760982, 2890461, 3326757, 3598329, 3828909, 4141473, 5780922, 6653514, 7196658, 7657818, 8282946, 8396101, 9663437, 10452289, 16792202, 19326874, 20904578, 25188303, 28990311, 31356867, 50376606, 57980622, 58772707, 62713734, 67644059, 73166023, 117545414, 135288118, 146332046, 176318121, 202932177, 219498069, 352636242, 405864354, 438996138, 512162161, 1024324322, 1536486483, 3072972966, 3585135127, 7170270254, 10755405381, 21510810762]

約数ペア:

[(1, 21510810762), (2, 10755405381), (3, 7170270254), (6, 3585135127), (7, 3072972966), (14, 1536486483), (21, 1024324322), (42, 512162161), (49, 438996138), (53, 405864354), (61, 352636242), (98, 219498069), (106, 202932177), (122, 176318121), (147, 146332046), (159, 135288118), (183, 117545414), (294, 73166023), (318, 67644059), (343, 62713734), (366, 58772707), (371, 57980622), (427, 50376606), (686, 31356867), (742, 28990311), (854, 25188303), (1029, 20904578), (1113, 19326874), (1281, 16792202), (2058, 10452289), (2226, 9663437), (2562, 8396101), (2597, 8282946), (2809, 7657818), (2989, 7196658), (3233, 6653514), (3721, 5780922), (5194, 4141473), (5618, 3828909), (5978, 3598329), (6466, 3326757), (7442, 2890461), (7791, 2760982), (8427, 2552606), (8967, 2398886), (9699, 2217838), (11163, 1926974), (15582, 1380491), (16854, 1276303), (17934, 1199443), (18179, 1183278), (19398, 1108919), (19663, 1093974), (20923, 1028094), (22326, 963487), (22631, 950502), (26047, 825846), (36358, 591639), (39326, 546987), (41846, 514047), (45262, 475251), (52094, 412923), (54537, 394426), (58989, 364658), (62769, 342698), (67893, 316834), (78141, 275282), (109074, 197213), (117978, 182329), (125538, 171349), (135786, 158417), (137641, 156282)]