21857472

素因数分解:

$2^6\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 224

約数和(自身を含む): 79654400

約数和(自身を除く): 57796928

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 27, 28, 32, 36, 39, 42, 48, 52, 54, 56, 63, 64, 72, 78, 84, 91, 96, 104, 108, 112, 117, 126, 139, 144, 156, 168, 182, 189, 192, 208, 216, 224, 234, 252, 273, 278, 288, 312, 336, 351, 364, 378, 416, 417, 432, 448, 468, 504, 546, 556, 576, 624, 672, 702, 728, 756, 819, 832, 834, 864, 936, 973, 1008, 1092, 1112, 1248, 1251, 1344, 1404, 1456, 1512, 1638, 1668, 1728, 1807, 1872, 1946, 2016, 2184, 2224, 2457, 2496, 2502, 2808, 2912, 2919, 3024, 3276, 3336, 3614, 3744, 3753, 3892, 4032, 4368, 4448, 4914, 5004, 5421, 5616, 5824, 5838, 6048, 6552, 6672, 7228, 7488, 7506, 7784, 8736, 8757, 8896, 9828, 10008, 10842, 11232, 11676, 12096, 12649, 13104, 13344, 14456, 15012, 15568, 16263, 17472, 17514, 19656, 20016, 21684, 22464, 23352, 25298, 26208, 26271, 26688, 28912, 30024, 31136, 32526, 35028, 37947, 39312, 40032, 43368, 46704, 48789, 50596, 52416, 52542, 57824, 60048, 62272, 65052, 70056, 75894, 78624, 80064, 86736, 93408, 97578, 101192, 105084, 113841, 115648, 120096, 130104, 140112, 151788, 157248, 173472, 186816, 195156, 202384, 210168, 227682, 240192, 260208, 280224, 303576, 341523, 346944, 390312, 404768, 420336, 455364, 520416, 560448, 607152, 683046, 780624, 809536, 840672, 910728, 1040832, 1214304, 1366092, 1561248, 1681344, 1821456, 2428608, 2732184, 3122496, 3642912, 5464368, 7285824, 10928736, 21857472]

約数ペア:

[(1, 21857472), (2, 10928736), (3, 7285824), (4, 5464368), (6, 3642912), (7, 3122496), (8, 2732184), (9, 2428608), (12, 1821456), (13, 1681344), (14, 1561248), (16, 1366092), (18, 1214304), (21, 1040832), (24, 910728), (26, 840672), (27, 809536), (28, 780624), (32, 683046), (36, 607152), (39, 560448), (42, 520416), (48, 455364), (52, 420336), (54, 404768), (56, 390312), (63, 346944), (64, 341523), (72, 303576), (78, 280224), (84, 260208), (91, 240192), (96, 227682), (104, 210168), (108, 202384), (112, 195156), (117, 186816), (126, 173472), (139, 157248), (144, 151788), (156, 140112), (168, 130104), (182, 120096), (189, 115648), (192, 113841), (208, 105084), (216, 101192), (224, 97578), (234, 93408), (252, 86736), (273, 80064), (278, 78624), (288, 75894), (312, 70056), (336, 65052), (351, 62272), (364, 60048), (378, 57824), (416, 52542), (417, 52416), (432, 50596), (448, 48789), (468, 46704), (504, 43368), (546, 40032), (556, 39312), (576, 37947), (624, 35028), (672, 32526), (702, 31136), (728, 30024), (756, 28912), (819, 26688), (832, 26271), (834, 26208), (864, 25298), (936, 23352), (973, 22464), (1008, 21684), (1092, 20016), (1112, 19656), (1248, 17514), (1251, 17472), (1344, 16263), (1404, 15568), (1456, 15012), (1512, 14456), (1638, 13344), (1668, 13104), (1728, 12649), (1807, 12096), (1872, 11676), (1946, 11232), (2016, 10842), (2184, 10008), (2224, 9828), (2457, 8896), (2496, 8757), (2502, 8736), (2808, 7784), (2912, 7506), (2919, 7488), (3024, 7228), (3276, 6672), (3336, 6552), (3614, 6048), (3744, 5838), (3753, 5824), (3892, 5616), (4032, 5421), (4368, 5004), (4448, 4914)]