18109728

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:727

約数の個数: 144

約数和(自身を含む): 63475776

約数和(自身を除く): 45366048

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 182, 208, 224, 234, 252, 273, 288, 312, 336, 364, 416, 468, 504, 546, 624, 672, 691, 728, 819, 936, 1008, 1092, 1248, 1382, 1456, 1638, 1872, 2016, 2073, 2184, 2764, 2912, 3276, 3744, 4146, 4368, 4837, 5528, 6219, 6552, 8292, 8736, 8983, 9674, 11056, 12438, 13104, 14511, 16584, 17966, 19348, 22112, 24876, 26208, 26949, 29022, 33168, 35932, 38696, 43533, 49752, 53898, 58044, 62881, 66336, 71864, 77392, 80847, 87066, 99504, 107796, 116088, 125762, 143728, 154784, 161694, 174132, 188643, 199008, 215592, 232176, 251524, 287456, 323388, 348264, 377286, 431184, 464352, 503048, 565929, 646776, 696528, 754572, 862368, 1006096, 1131858, 1293552, 1393056, 1509144, 2012192, 2263716, 2587104, 3018288, 4527432, 6036576, 9054864, 18109728]

約数ペア:

[(1, 18109728), (2, 9054864), (3, 6036576), (4, 4527432), (6, 3018288), (7, 2587104), (8, 2263716), (9, 2012192), (12, 1509144), (13, 1393056), (14, 1293552), (16, 1131858), (18, 1006096), (21, 862368), (24, 754572), (26, 696528), (28, 646776), (32, 565929), (36, 503048), (39, 464352), (42, 431184), (48, 377286), (52, 348264), (56, 323388), (63, 287456), (72, 251524), (78, 232176), (84, 215592), (91, 199008), (96, 188643), (104, 174132), (112, 161694), (117, 154784), (126, 143728), (144, 125762), (156, 116088), (168, 107796), (182, 99504), (208, 87066), (224, 80847), (234, 77392), (252, 71864), (273, 66336), (288, 62881), (312, 58044), (336, 53898), (364, 49752), (416, 43533), (468, 38696), (504, 35932), (546, 33168), (624, 29022), (672, 26949), (691, 26208), (728, 24876), (819, 22112), (936, 19348), (1008, 17966), (1092, 16584), (1248, 14511), (1382, 13104), (1456, 12438), (1638, 11056), (1872, 9674), (2016, 8983), (2073, 8736), (2184, 8292), (2764, 6552), (2912, 6219), (3276, 5528), (3744, 4837), (4146, 4368)]