20805216411

素因数分解:

$3^1\times 7^1\times {\mathrm{9811}}^1\times {\mathrm{100981}}^1$

素因数の和:110802

約数の個数: 16

約数和(自身を含む): 31706732288

約数和(自身を除く): 10901515877

約数列:

[1, 3, 7, 21, 9811, 29433, 68677, 100981, 206031, 302943, 706867, 2120601, 990724591, 2972173773, 6935072137, 20805216411]

約数ペア:

[(1, 20805216411), (3, 6935072137), (7, 2972173773), (21, 990724591), (9811, 2120601), (29433, 706867), (68677, 302943), (100981, 206031)]