20497701

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7451}}^1$

素因数の和:7592

約数の個数: 16

約数和(自身を含む): 31477248

約数和(自身を除く): 10979547

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7451, 22353, 52157, 156471, 976081, 2928243, 6832567, 20497701]

約数ペア:

[(1, 20497701), (3, 6832567), (7, 2928243), (21, 976081), (131, 156471), (393, 52157), (917, 22353), (2751, 7451)]