2783459

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:266

約数の個数: 16

約数和(自身を含む): 3342336

約数和(自身を除く): 558877

約数列:

[1, 7, 31, 101, 127, 217, 707, 889, 3131, 3937, 12827, 21917, 27559, 89789, 397637, 2783459]

約数ペア:

[(1, 2783459), (7, 397637), (31, 89789), (101, 27559), (127, 21917), (217, 12827), (707, 3937), (889, 3131)]