21356608

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:244

約数の個数: 112

約数和(自身を含む): 55189120

約数和(自身を除く): 33832512

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 52, 56, 64, 76, 91, 104, 112, 133, 152, 182, 193, 208, 224, 247, 266, 304, 364, 386, 416, 448, 494, 532, 608, 728, 772, 832, 988, 1064, 1216, 1351, 1456, 1544, 1729, 1976, 2128, 2509, 2702, 2912, 3088, 3458, 3667, 3952, 4256, 5018, 5404, 5824, 6176, 6916, 7334, 7904, 8512, 10036, 10808, 12352, 13832, 14668, 15808, 17563, 20072, 21616, 25669, 27664, 29336, 35126, 40144, 43232, 47671, 51338, 55328, 58672, 70252, 80288, 86464, 95342, 102676, 110656, 117344, 140504, 160576, 190684, 205352, 234688, 281008, 333697, 381368, 410704, 562016, 667394, 762736, 821408, 1124032, 1334788, 1525472, 1642816, 2669576, 3050944, 5339152, 10678304, 21356608]

約数ペア:

[(1, 21356608), (2, 10678304), (4, 5339152), (7, 3050944), (8, 2669576), (13, 1642816), (14, 1525472), (16, 1334788), (19, 1124032), (26, 821408), (28, 762736), (32, 667394), (38, 562016), (52, 410704), (56, 381368), (64, 333697), (76, 281008), (91, 234688), (104, 205352), (112, 190684), (133, 160576), (152, 140504), (182, 117344), (193, 110656), (208, 102676), (224, 95342), (247, 86464), (266, 80288), (304, 70252), (364, 58672), (386, 55328), (416, 51338), (448, 47671), (494, 43232), (532, 40144), (608, 35126), (728, 29336), (772, 27664), (832, 25669), (988, 21616), (1064, 20072), (1216, 17563), (1351, 15808), (1456, 14668), (1544, 13832), (1729, 12352), (1976, 10808), (2128, 10036), (2509, 8512), (2702, 7904), (2912, 7334), (3088, 6916), (3458, 6176), (3667, 5824), (3952, 5404), (4256, 5018)]