21518448

素因数分解:

$2^4\times 3^1\times 7^3\times {\mathrm{1307}}^1$

素因数の和:1339

約数の個数: 80

約数和(自身を含む): 64876800

約数和(自身を除く): 43358352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 336, 343, 392, 588, 686, 784, 1029, 1176, 1307, 1372, 2058, 2352, 2614, 2744, 3921, 4116, 5228, 5488, 7842, 8232, 9149, 10456, 15684, 16464, 18298, 20912, 27447, 31368, 36596, 54894, 62736, 64043, 73192, 109788, 128086, 146384, 192129, 219576, 256172, 384258, 439152, 448301, 512344, 768516, 896602, 1024688, 1344903, 1537032, 1793204, 2689806, 3074064, 3586408, 5379612, 7172816, 10759224, 21518448]

約数ペア:

[(1, 21518448), (2, 10759224), (3, 7172816), (4, 5379612), (6, 3586408), (7, 3074064), (8, 2689806), (12, 1793204), (14, 1537032), (16, 1344903), (21, 1024688), (24, 896602), (28, 768516), (42, 512344), (48, 448301), (49, 439152), (56, 384258), (84, 256172), (98, 219576), (112, 192129), (147, 146384), (168, 128086), (196, 109788), (294, 73192), (336, 64043), (343, 62736), (392, 54894), (588, 36596), (686, 31368), (784, 27447), (1029, 20912), (1176, 18298), (1307, 16464), (1372, 15684), (2058, 10456), (2352, 9149), (2614, 8232), (2744, 7842), (3921, 5488), (4116, 5228)]