21153712

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{937}}^1$

素因数の和:1045

約数の個数: 40

約数和(自身を含む): 43965936

約数和(自身を除く): 22812224

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 83, 136, 166, 272, 332, 664, 937, 1328, 1411, 1874, 2822, 3748, 5644, 7496, 11288, 14992, 15929, 22576, 31858, 63716, 77771, 127432, 155542, 254864, 311084, 622168, 1244336, 1322107, 2644214, 5288428, 10576856, 21153712]

約数ペア:

[(1, 21153712), (2, 10576856), (4, 5288428), (8, 2644214), (16, 1322107), (17, 1244336), (34, 622168), (68, 311084), (83, 254864), (136, 155542), (166, 127432), (272, 77771), (332, 63716), (664, 31858), (937, 22576), (1328, 15929), (1411, 14992), (1874, 11288), (2822, 7496), (3748, 5644)]