19982501

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1867}}^1$

素因数の和:2024

約数の個数: 16

約数和(自身を含む): 25105920

約数和(自身を除く): 5123419

約数列:

[1, 7, 11, 77, 139, 973, 1529, 1867, 10703, 13069, 20537, 143759, 259513, 1816591, 2854643, 19982501]

約数ペア:

[(1, 19982501), (7, 2854643), (11, 1816591), (77, 259513), (139, 143759), (973, 20537), (1529, 13069), (1867, 10703)]