18987696

素因数分解:

$2^4\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:70

約数の個数: 300

約数和(自身を含む): 71839152

約数和(自身を除く): 52851456

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 23, 24, 26, 27, 28, 36, 39, 42, 46, 48, 49, 52, 54, 56, 63, 69, 72, 78, 81, 84, 91, 92, 98, 104, 108, 112, 117, 126, 138, 144, 147, 156, 161, 162, 168, 182, 184, 189, 196, 207, 208, 216, 234, 252, 273, 276, 294, 299, 312, 322, 324, 336, 351, 364, 368, 378, 392, 414, 432, 441, 468, 483, 504, 546, 552, 567, 588, 598, 621, 624, 637, 644, 648, 702, 728, 756, 784, 819, 828, 882, 897, 936, 966, 1008, 1053, 1092, 1104, 1127, 1134, 1176, 1196, 1242, 1274, 1288, 1296, 1323, 1404, 1449, 1456, 1512, 1638, 1656, 1764, 1794, 1863, 1872, 1911, 1932, 2093, 2106, 2184, 2254, 2268, 2352, 2392, 2457, 2484, 2548, 2576, 2646, 2691, 2808, 2898, 3024, 3276, 3312, 3381, 3528, 3588, 3726, 3822, 3864, 3969, 4186, 4212, 4347, 4368, 4508, 4536, 4784, 4914, 4968, 5096, 5292, 5382, 5616, 5733, 5796, 6279, 6552, 6762, 7056, 7176, 7371, 7452, 7644, 7728, 7938, 8073, 8372, 8424, 8694, 9016, 9072, 9828, 9936, 10143, 10192, 10584, 10764, 11466, 11592, 12558, 13041, 13104, 13524, 14352, 14651, 14742, 14904, 15288, 15876, 16146, 16744, 16848, 17199, 17388, 18032, 18837, 19656, 20286, 21168, 21528, 22932, 23184, 24219, 25116, 26082, 27048, 29302, 29484, 29808, 30429, 30576, 31752, 32292, 33488, 34398, 34776, 37674, 39312, 40572, 43056, 43953, 45864, 48438, 50232, 51597, 52164, 54096, 56511, 58604, 58968, 60858, 63504, 64584, 68796, 69552, 75348, 81144, 87906, 91287, 91728, 96876, 100464, 103194, 104328, 113022, 117208, 117936, 121716, 129168, 131859, 137592, 150696, 162288, 169533, 175812, 182574, 193752, 206388, 208656, 226044, 234416, 243432, 263718, 275184, 301392, 339066, 351624, 365148, 387504, 395577, 412776, 452088, 486864, 527436, 678132, 703248, 730296, 791154, 825552, 904176, 1054872, 1186731, 1356264, 1460592, 1582308, 2109744, 2373462, 2712528, 3164616, 4746924, 6329232, 9493848, 18987696]

約数ペア:

[(1, 18987696), (2, 9493848), (3, 6329232), (4, 4746924), (6, 3164616), (7, 2712528), (8, 2373462), (9, 2109744), (12, 1582308), (13, 1460592), (14, 1356264), (16, 1186731), (18, 1054872), (21, 904176), (23, 825552), (24, 791154), (26, 730296), (27, 703248), (28, 678132), (36, 527436), (39, 486864), (42, 452088), (46, 412776), (48, 395577), (49, 387504), (52, 365148), (54, 351624), (56, 339066), (63, 301392), (69, 275184), (72, 263718), (78, 243432), (81, 234416), (84, 226044), (91, 208656), (92, 206388), (98, 193752), (104, 182574), (108, 175812), (112, 169533), (117, 162288), (126, 150696), (138, 137592), (144, 131859), (147, 129168), (156, 121716), (161, 117936), (162, 117208), (168, 113022), (182, 104328), (184, 103194), (189, 100464), (196, 96876), (207, 91728), (208, 91287), (216, 87906), (234, 81144), (252, 75348), (273, 69552), (276, 68796), (294, 64584), (299, 63504), (312, 60858), (322, 58968), (324, 58604), (336, 56511), (351, 54096), (364, 52164), (368, 51597), (378, 50232), (392, 48438), (414, 45864), (432, 43953), (441, 43056), (468, 40572), (483, 39312), (504, 37674), (546, 34776), (552, 34398), (567, 33488), (588, 32292), (598, 31752), (621, 30576), (624, 30429), (637, 29808), (644, 29484), (648, 29302), (702, 27048), (728, 26082), (756, 25116), (784, 24219), (819, 23184), (828, 22932), (882, 21528), (897, 21168), (936, 20286), (966, 19656), (1008, 18837), (1053, 18032), (1092, 17388), (1104, 17199), (1127, 16848), (1134, 16744), (1176, 16146), (1196, 15876), (1242, 15288), (1274, 14904), (1288, 14742), (1296, 14651), (1323, 14352), (1404, 13524), (1449, 13104), (1456, 13041), (1512, 12558), (1638, 11592), (1656, 11466), (1764, 10764), (1794, 10584), (1863, 10192), (1872, 10143), (1911, 9936), (1932, 9828), (2093, 9072), (2106, 9016), (2184, 8694), (2254, 8424), (2268, 8372), (2352, 8073), (2392, 7938), (2457, 7728), (2484, 7644), (2548, 7452), (2576, 7371), (2646, 7176), (2691, 7056), (2808, 6762), (2898, 6552), (3024, 6279), (3276, 5796), (3312, 5733), (3381, 5616), (3528, 5382), (3588, 5292), (3726, 5096), (3822, 4968), (3864, 4914), (3969, 4784), (4186, 4536), (4212, 4508), (4347, 4368)]