21012936

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 65664000

約数和(自身を除く): 44651064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 29, 38, 42, 56, 57, 58, 76, 84, 87, 114, 116, 133, 152, 168, 174, 203, 227, 228, 232, 266, 348, 399, 406, 454, 456, 532, 551, 609, 681, 696, 798, 812, 908, 1064, 1102, 1218, 1362, 1589, 1596, 1624, 1653, 1816, 2204, 2436, 2724, 3178, 3192, 3306, 3857, 4313, 4408, 4767, 4872, 5448, 6356, 6583, 6612, 7714, 8626, 9534, 11571, 12712, 12939, 13166, 13224, 15428, 17252, 19068, 19749, 23142, 25878, 26332, 30191, 30856, 34504, 38136, 39498, 46081, 46284, 51756, 52664, 60382, 78996, 90573, 92162, 92568, 103512, 120764, 125077, 138243, 157992, 181146, 184324, 241528, 250154, 276486, 362292, 368648, 375231, 500308, 552972, 724584, 750462, 875539, 1000616, 1105944, 1500924, 1751078, 2626617, 3001848, 3502156, 5253234, 7004312, 10506468, 21012936]

約数ペア:

[(1, 21012936), (2, 10506468), (3, 7004312), (4, 5253234), (6, 3502156), (7, 3001848), (8, 2626617), (12, 1751078), (14, 1500924), (19, 1105944), (21, 1000616), (24, 875539), (28, 750462), (29, 724584), (38, 552972), (42, 500308), (56, 375231), (57, 368648), (58, 362292), (76, 276486), (84, 250154), (87, 241528), (114, 184324), (116, 181146), (133, 157992), (152, 138243), (168, 125077), (174, 120764), (203, 103512), (227, 92568), (228, 92162), (232, 90573), (266, 78996), (348, 60382), (399, 52664), (406, 51756), (454, 46284), (456, 46081), (532, 39498), (551, 38136), (609, 34504), (681, 30856), (696, 30191), (798, 26332), (812, 25878), (908, 23142), (1064, 19749), (1102, 19068), (1218, 17252), (1362, 15428), (1589, 13224), (1596, 13166), (1624, 12939), (1653, 12712), (1816, 11571), (2204, 9534), (2436, 8626), (2724, 7714), (3178, 6612), (3192, 6583), (3306, 6356), (3857, 5448), (4313, 4872), (4408, 4767)]