21055076

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 44040192

約数和(自身を除く): 22985116

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 127, 191, 217, 254, 382, 434, 508, 764, 868, 889, 1337, 1778, 2674, 3556, 3937, 5348, 5921, 7874, 11842, 15748, 23684, 24257, 27559, 41447, 48514, 55118, 82894, 97028, 110236, 165788, 169799, 339598, 679196, 751967, 1503934, 3007868, 5263769, 10527538, 21055076]

約数ペア:

[(1, 21055076), (2, 10527538), (4, 5263769), (7, 3007868), (14, 1503934), (28, 751967), (31, 679196), (62, 339598), (124, 169799), (127, 165788), (191, 110236), (217, 97028), (254, 82894), (382, 55118), (434, 48514), (508, 41447), (764, 27559), (868, 24257), (889, 23684), (1337, 15748), (1778, 11842), (2674, 7874), (3556, 5921), (3937, 5348)]