28931287

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{5147}}^1$

素因数の和:5238

約数の個数: 16

約数和(自身を含む): 36571392

約数和(自身を除く): 7640105

約数列:

[1, 7, 11, 73, 77, 511, 803, 5147, 5621, 36029, 56617, 375731, 396319, 2630117, 4133041, 28931287]

約数ペア:

[(1, 28931287), (7, 4133041), (11, 2630117), (73, 396319), (77, 375731), (511, 56617), (803, 36029), (5147, 5621)]