21237568

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:431

約数の個数: 56

約数和(自身を含む): 46597824

約数和(自身を除く): 25360256

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 97, 176, 194, 311, 352, 388, 622, 704, 776, 1067, 1244, 1552, 2134, 2488, 3104, 3421, 4268, 4976, 6208, 6842, 8536, 9952, 13684, 17072, 19904, 27368, 30167, 34144, 54736, 60334, 68288, 109472, 120668, 218944, 241336, 331837, 482672, 663674, 965344, 1327348, 1930688, 2654696, 5309392, 10618784, 21237568]

約数ペア:

[(1, 21237568), (2, 10618784), (4, 5309392), (8, 2654696), (11, 1930688), (16, 1327348), (22, 965344), (32, 663674), (44, 482672), (64, 331837), (88, 241336), (97, 218944), (176, 120668), (194, 109472), (311, 68288), (352, 60334), (388, 54736), (622, 34144), (704, 30167), (776, 27368), (1067, 19904), (1244, 17072), (1552, 13684), (2134, 9952), (2488, 8536), (3104, 6842), (3421, 6208), (4268, 4976)]