27928719

素因数分解:

$3^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:459

約数の個数: 56

約数和(自身を含む): 51659552

約数和(自身を除く): 23730833

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 243, 273, 351, 421, 567, 729, 819, 1053, 1263, 1701, 2457, 2947, 3159, 3789, 5103, 5473, 7371, 8841, 9477, 11367, 16419, 22113, 26523, 34101, 38311, 49257, 66339, 79569, 102303, 114933, 147771, 238707, 306909, 344799, 443313, 716121, 1034397, 1329939, 2148363, 3103191, 3989817, 9309573, 27928719]

約数ペア:

[(1, 27928719), (3, 9309573), (7, 3989817), (9, 3103191), (13, 2148363), (21, 1329939), (27, 1034397), (39, 716121), (63, 443313), (81, 344799), (91, 306909), (117, 238707), (189, 147771), (243, 114933), (273, 102303), (351, 79569), (421, 66339), (567, 49257), (729, 38311), (819, 34101), (1053, 26523), (1263, 22113), (1701, 16419), (2457, 11367), (2947, 9477), (3159, 8841), (3789, 7371), (5103, 5473)]