21395208

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 55872000

約数和(自身を除く): 34476792

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 62, 93, 124, 149, 186, 193, 248, 298, 372, 386, 447, 579, 596, 744, 772, 894, 1158, 1192, 1544, 1788, 2316, 3576, 4619, 4632, 5983, 9238, 11966, 13857, 17949, 18476, 23932, 27714, 28757, 35898, 36952, 47864, 55428, 57514, 71796, 86271, 110856, 115028, 143592, 172542, 230056, 345084, 690168, 891467, 1782934, 2674401, 3565868, 5348802, 7131736, 10697604, 21395208]

約数ペア:

[(1, 21395208), (2, 10697604), (3, 7131736), (4, 5348802), (6, 3565868), (8, 2674401), (12, 1782934), (24, 891467), (31, 690168), (62, 345084), (93, 230056), (124, 172542), (149, 143592), (186, 115028), (193, 110856), (248, 86271), (298, 71796), (372, 57514), (386, 55428), (447, 47864), (579, 36952), (596, 35898), (744, 28757), (772, 27714), (894, 23932), (1158, 18476), (1192, 17949), (1544, 13857), (1788, 11966), (2316, 9238), (3576, 5983), (4619, 4632)]