21501216

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^2\times {\mathrm{617}}^1$

素因数の和:655

約数の個数: 108

約数和(自身を含む): 67316886

約数和(自身を除く): 45815670

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 121, 132, 144, 176, 198, 242, 264, 288, 352, 363, 396, 484, 528, 617, 726, 792, 968, 1056, 1089, 1234, 1452, 1584, 1851, 1936, 2178, 2468, 2904, 3168, 3702, 3872, 4356, 4936, 5553, 5808, 6787, 7404, 8712, 9872, 11106, 11616, 13574, 14808, 17424, 19744, 20361, 22212, 27148, 29616, 34848, 40722, 44424, 54296, 59232, 61083, 74657, 81444, 88848, 108592, 122166, 149314, 162888, 177696, 217184, 223971, 244332, 298628, 325776, 447942, 488664, 597256, 651552, 671913, 895884, 977328, 1194512, 1343826, 1791768, 1954656, 2389024, 2687652, 3583536, 5375304, 7167072, 10750608, 21501216]

約数ペア:

[(1, 21501216), (2, 10750608), (3, 7167072), (4, 5375304), (6, 3583536), (8, 2687652), (9, 2389024), (11, 1954656), (12, 1791768), (16, 1343826), (18, 1194512), (22, 977328), (24, 895884), (32, 671913), (33, 651552), (36, 597256), (44, 488664), (48, 447942), (66, 325776), (72, 298628), (88, 244332), (96, 223971), (99, 217184), (121, 177696), (132, 162888), (144, 149314), (176, 122166), (198, 108592), (242, 88848), (264, 81444), (288, 74657), (352, 61083), (363, 59232), (396, 54296), (484, 44424), (528, 40722), (617, 34848), (726, 29616), (792, 27148), (968, 22212), (1056, 20361), (1089, 19744), (1234, 17424), (1452, 14808), (1584, 13574), (1851, 11616), (1936, 11106), (2178, 9872), (2468, 8712), (2904, 7404), (3168, 6787), (3702, 5808), (3872, 5553), (4356, 4936)]