21040448

素因数分解:

$2^6\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:77

約数の個数: 112

約数和(自身を含む): 52059840

約数和(自身を除く): 31019392

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 32, 38, 44, 52, 64, 76, 88, 104, 121, 143, 152, 176, 208, 209, 242, 247, 286, 304, 352, 416, 418, 484, 494, 572, 608, 704, 832, 836, 968, 988, 1144, 1216, 1331, 1573, 1672, 1936, 1976, 2288, 2299, 2662, 2717, 3146, 3344, 3872, 3952, 4576, 4598, 5324, 5434, 6292, 6688, 7744, 7904, 9152, 9196, 10648, 10868, 12584, 13376, 15808, 17303, 18392, 21296, 21736, 25168, 25289, 29887, 34606, 36784, 42592, 43472, 50336, 50578, 59774, 69212, 73568, 85184, 86944, 100672, 101156, 119548, 138424, 147136, 173888, 202312, 239096, 276848, 328757, 404624, 478192, 553696, 657514, 809248, 956384, 1107392, 1315028, 1618496, 1912768, 2630056, 5260112, 10520224, 21040448]

約数ペア:

[(1, 21040448), (2, 10520224), (4, 5260112), (8, 2630056), (11, 1912768), (13, 1618496), (16, 1315028), (19, 1107392), (22, 956384), (26, 809248), (32, 657514), (38, 553696), (44, 478192), (52, 404624), (64, 328757), (76, 276848), (88, 239096), (104, 202312), (121, 173888), (143, 147136), (152, 138424), (176, 119548), (208, 101156), (209, 100672), (242, 86944), (247, 85184), (286, 73568), (304, 69212), (352, 59774), (416, 50578), (418, 50336), (484, 43472), (494, 42592), (572, 36784), (608, 34606), (704, 29887), (832, 25289), (836, 25168), (968, 21736), (988, 21296), (1144, 18392), (1216, 17303), (1331, 15808), (1573, 13376), (1672, 12584), (1936, 10868), (1976, 10648), (2288, 9196), (2299, 9152), (2662, 7904), (2717, 7744), (3146, 6688), (3344, 6292), (3872, 5434), (3952, 5324), (4576, 4598)]