21133728

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{953}}^1$

素因数の和:987

約数の個数: 144

約数和(自身を含む): 75007296

約数和(自身を除く): 53873568

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 32, 33, 36, 42, 44, 48, 56, 63, 66, 72, 77, 84, 88, 96, 99, 112, 126, 132, 144, 154, 168, 176, 198, 224, 231, 252, 264, 288, 308, 336, 352, 396, 462, 504, 528, 616, 672, 693, 792, 924, 953, 1008, 1056, 1232, 1386, 1584, 1848, 1906, 2016, 2464, 2772, 2859, 3168, 3696, 3812, 5544, 5718, 6671, 7392, 7624, 8577, 10483, 11088, 11436, 13342, 15248, 17154, 20013, 20966, 22176, 22872, 26684, 30496, 31449, 34308, 40026, 41932, 45744, 53368, 60039, 62898, 68616, 73381, 80052, 83864, 91488, 94347, 106736, 120078, 125796, 137232, 146762, 160104, 167728, 188694, 213472, 220143, 240156, 251592, 274464, 293524, 320208, 335456, 377388, 440286, 480312, 503184, 587048, 640416, 660429, 754776, 880572, 960624, 1006368, 1174096, 1320858, 1509552, 1761144, 1921248, 2348192, 2641716, 3019104, 3522288, 5283432, 7044576, 10566864, 21133728]

約数ペア:

[(1, 21133728), (2, 10566864), (3, 7044576), (4, 5283432), (6, 3522288), (7, 3019104), (8, 2641716), (9, 2348192), (11, 1921248), (12, 1761144), (14, 1509552), (16, 1320858), (18, 1174096), (21, 1006368), (22, 960624), (24, 880572), (28, 754776), (32, 660429), (33, 640416), (36, 587048), (42, 503184), (44, 480312), (48, 440286), (56, 377388), (63, 335456), (66, 320208), (72, 293524), (77, 274464), (84, 251592), (88, 240156), (96, 220143), (99, 213472), (112, 188694), (126, 167728), (132, 160104), (144, 146762), (154, 137232), (168, 125796), (176, 120078), (198, 106736), (224, 94347), (231, 91488), (252, 83864), (264, 80052), (288, 73381), (308, 68616), (336, 62898), (352, 60039), (396, 53368), (462, 45744), (504, 41932), (528, 40026), (616, 34308), (672, 31449), (693, 30496), (792, 26684), (924, 22872), (953, 22176), (1008, 20966), (1056, 20013), (1232, 17154), (1386, 15248), (1584, 13342), (1848, 11436), (1906, 11088), (2016, 10483), (2464, 8577), (2772, 7624), (2859, 7392), (3168, 6671), (3696, 5718), (3812, 5544)]