16880213

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{727}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 20127744

約数和(自身を除く): 3247531

約数列:

[1, 7, 31, 107, 217, 727, 749, 3317, 5089, 22537, 23219, 77789, 157759, 544523, 2411459, 16880213]

約数ペア:

[(1, 16880213), (7, 2411459), (31, 544523), (107, 157759), (217, 77789), (727, 23219), (749, 22537), (3317, 5089)]