128294523

素因数分解:

$3^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:867

約数の個数: 56

約数和(自身を含む): 227204096

約数和(自身を除く): 98909573

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 243, 279, 567, 651, 729, 811, 837, 1701, 1953, 2433, 2511, 5103, 5677, 5859, 7299, 7533, 17031, 17577, 21897, 22599, 25141, 51093, 52731, 65691, 75423, 153279, 158193, 175987, 197073, 226269, 459837, 527961, 591219, 678807, 1379511, 1583883, 2036421, 4138533, 4751649, 6109263, 14254947, 18327789, 42764841, 128294523]

約数ペア:

[(1, 128294523), (3, 42764841), (7, 18327789), (9, 14254947), (21, 6109263), (27, 4751649), (31, 4138533), (63, 2036421), (81, 1583883), (93, 1379511), (189, 678807), (217, 591219), (243, 527961), (279, 459837), (567, 226269), (651, 197073), (729, 175987), (811, 158193), (837, 153279), (1701, 75423), (1953, 65691), (2433, 52731), (2511, 51093), (5103, 25141), (5677, 22599), (5859, 21897), (7299, 17577), (7533, 17031)]