215179983

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:477

約数の個数: 40

約数和(自身を含む): 329363936

約数和(自身を除く): 114183953

約数列:

[1, 3, 9, 27, 73, 81, 151, 219, 241, 453, 657, 723, 1359, 1971, 2169, 4077, 5913, 6507, 11023, 12231, 17593, 19521, 33069, 36391, 52779, 99207, 109173, 158337, 297621, 327519, 475011, 892863, 982557, 1425033, 2656543, 2947671, 7969629, 23908887, 71726661, 215179983]

約数ペア:

[(1, 215179983), (3, 71726661), (9, 23908887), (27, 7969629), (73, 2947671), (81, 2656543), (151, 1425033), (219, 982557), (241, 892863), (453, 475011), (657, 327519), (723, 297621), (1359, 158337), (1971, 109173), (2169, 99207), (4077, 52779), (5913, 36391), (6507, 33069), (11023, 19521), (12231, 17593)]