21551152

素因数分解:

$2^4\times 7^1\times {\mathrm{193}}^1\times {\mathrm{997}}^1$

素因数の和:1205

約数の個数: 40

約数和(自身を含む): 48015776

約数和(自身を除く): 26464624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193, 386, 772, 997, 1351, 1544, 1994, 2702, 3088, 3988, 5404, 6979, 7976, 10808, 13958, 15952, 21616, 27916, 55832, 111664, 192421, 384842, 769684, 1346947, 1539368, 2693894, 3078736, 5387788, 10775576, 21551152]

約数ペア:

[(1, 21551152), (2, 10775576), (4, 5387788), (7, 3078736), (8, 2693894), (14, 1539368), (16, 1346947), (28, 769684), (56, 384842), (112, 192421), (193, 111664), (386, 55832), (772, 27916), (997, 21616), (1351, 15952), (1544, 13958), (1994, 10808), (2702, 7976), (3088, 6979), (3988, 5404)]