20123383

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 23618304

約数和(自身を除く): 3494921

約数列:

[1, 7, 67, 107, 401, 469, 749, 2807, 7169, 26867, 42907, 50183, 188069, 300349, 2874769, 20123383]

約数ペア:

[(1, 20123383), (7, 2874769), (67, 300349), (107, 188069), (401, 50183), (469, 42907), (749, 26867), (2807, 7169)]