21785328

素因数分解:

$2^4\times 3^3\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:467

約数の個数: 80

約数和(自身を含む): 63091200

約数和(自身を除く): 41305872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 211, 216, 239, 422, 432, 478, 633, 717, 844, 956, 1266, 1434, 1688, 1899, 1912, 2151, 2532, 2868, 3376, 3798, 3824, 4302, 5064, 5697, 5736, 6453, 7596, 8604, 10128, 11394, 11472, 12906, 15192, 17208, 22788, 25812, 30384, 34416, 45576, 50429, 51624, 91152, 100858, 103248, 151287, 201716, 302574, 403432, 453861, 605148, 806864, 907722, 1210296, 1361583, 1815444, 2420592, 2723166, 3630888, 5446332, 7261776, 10892664, 21785328]

約数ペア:

[(1, 21785328), (2, 10892664), (3, 7261776), (4, 5446332), (6, 3630888), (8, 2723166), (9, 2420592), (12, 1815444), (16, 1361583), (18, 1210296), (24, 907722), (27, 806864), (36, 605148), (48, 453861), (54, 403432), (72, 302574), (108, 201716), (144, 151287), (211, 103248), (216, 100858), (239, 91152), (422, 51624), (432, 50429), (478, 45576), (633, 34416), (717, 30384), (844, 25812), (956, 22788), (1266, 17208), (1434, 15192), (1688, 12906), (1899, 11472), (1912, 11394), (2151, 10128), (2532, 8604), (2868, 7596), (3376, 6453), (3798, 5736), (3824, 5697), (4302, 5064)]