21393768

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 60328800

約数和(自身を除く): 38935032

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 53, 66, 88, 106, 121, 132, 139, 159, 212, 242, 264, 278, 318, 363, 417, 424, 484, 556, 583, 636, 726, 834, 968, 1112, 1166, 1272, 1452, 1529, 1668, 1749, 2332, 2904, 3058, 3336, 3498, 4587, 4664, 6116, 6413, 6996, 7367, 9174, 12232, 12826, 13992, 14734, 16819, 18348, 19239, 22101, 25652, 29468, 33638, 36696, 38478, 44202, 50457, 51304, 58936, 67276, 76956, 81037, 88404, 100914, 134552, 153912, 162074, 176808, 201828, 243111, 324148, 403656, 486222, 648296, 891407, 972444, 1782814, 1944888, 2674221, 3565628, 5348442, 7131256, 10696884, 21393768]

約数ペア:

[(1, 21393768), (2, 10696884), (3, 7131256), (4, 5348442), (6, 3565628), (8, 2674221), (11, 1944888), (12, 1782814), (22, 972444), (24, 891407), (33, 648296), (44, 486222), (53, 403656), (66, 324148), (88, 243111), (106, 201828), (121, 176808), (132, 162074), (139, 153912), (159, 134552), (212, 100914), (242, 88404), (264, 81037), (278, 76956), (318, 67276), (363, 58936), (417, 51304), (424, 50457), (484, 44202), (556, 38478), (583, 36696), (636, 33638), (726, 29468), (834, 25652), (968, 22101), (1112, 19239), (1166, 18348), (1272, 16819), (1452, 14734), (1529, 13992), (1668, 12826), (1749, 12232), (2332, 9174), (2904, 7367), (3058, 6996), (3336, 6413), (3498, 6116), (4587, 4664)]