21128448

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 63870912

約数和(自身を除く): 42742464

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 41, 44, 48, 61, 64, 66, 82, 88, 96, 122, 123, 128, 132, 164, 176, 183, 192, 244, 246, 256, 264, 328, 352, 366, 384, 451, 488, 492, 528, 656, 671, 704, 732, 768, 902, 976, 984, 1056, 1312, 1342, 1353, 1408, 1464, 1804, 1952, 1968, 2013, 2112, 2501, 2624, 2684, 2706, 2816, 2928, 3608, 3904, 3936, 4026, 4224, 5002, 5248, 5368, 5412, 5856, 7216, 7503, 7808, 7872, 8052, 8448, 10004, 10496, 10736, 10824, 11712, 14432, 15006, 15616, 15744, 16104, 20008, 21472, 21648, 23424, 27511, 28864, 30012, 31488, 32208, 40016, 42944, 43296, 46848, 55022, 57728, 60024, 64416, 80032, 82533, 85888, 86592, 110044, 115456, 120048, 128832, 160064, 165066, 171776, 173184, 220088, 240096, 257664, 320128, 330132, 346368, 440176, 480192, 515328, 640256, 660264, 880352, 960384, 1320528, 1760704, 1920768, 2641056, 3521408, 5282112, 7042816, 10564224, 21128448]

約数ペア:

[(1, 21128448), (2, 10564224), (3, 7042816), (4, 5282112), (6, 3521408), (8, 2641056), (11, 1920768), (12, 1760704), (16, 1320528), (22, 960384), (24, 880352), (32, 660264), (33, 640256), (41, 515328), (44, 480192), (48, 440176), (61, 346368), (64, 330132), (66, 320128), (82, 257664), (88, 240096), (96, 220088), (122, 173184), (123, 171776), (128, 165066), (132, 160064), (164, 128832), (176, 120048), (183, 115456), (192, 110044), (244, 86592), (246, 85888), (256, 82533), (264, 80032), (328, 64416), (352, 60024), (366, 57728), (384, 55022), (451, 46848), (488, 43296), (492, 42944), (528, 40016), (656, 32208), (671, 31488), (704, 30012), (732, 28864), (768, 27511), (902, 23424), (976, 21648), (984, 21472), (1056, 20008), (1312, 16104), (1342, 15744), (1353, 15616), (1408, 15006), (1464, 14432), (1804, 11712), (1952, 10824), (1968, 10736), (2013, 10496), (2112, 10004), (2501, 8448), (2624, 8052), (2684, 7872), (2706, 7808), (2816, 7503), (2928, 7216), (3608, 5856), (3904, 5412), (3936, 5368), (4026, 5248), (4224, 5002)]