1283121

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 2292224

約数和(自身を除く): 1009103

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 73, 81, 93, 189, 217, 219, 279, 511, 567, 651, 657, 837, 1533, 1953, 1971, 2263, 2511, 4599, 5859, 5913, 6789, 13797, 15841, 17577, 20367, 41391, 47523, 61101, 142569, 183303, 427707, 1283121]

約数ペア:

[(1, 1283121), (3, 427707), (7, 183303), (9, 142569), (21, 61101), (27, 47523), (31, 41391), (63, 20367), (73, 17577), (81, 15841), (93, 13797), (189, 6789), (217, 5913), (219, 5859), (279, 4599), (511, 2511), (567, 2263), (651, 1971), (657, 1953), (837, 1533)]