28754999

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16631}}^1$

素因数の和:16670

約数の個数: 16

約数和(自身を含む): 37255680

約数和(自身を除く): 8500681

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 16631, 116417, 216203, 315989, 1513421, 2211923, 4107857, 28754999]

約数ペア:

[(1, 28754999), (7, 4107857), (13, 2211923), (19, 1513421), (91, 315989), (133, 216203), (247, 116417), (1729, 16631)]