20879947

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{691}}^1$

素因数の和:810

約数の個数: 16

約数和(自身を含む): 23716224

約数和(自身を除く): 2836277

約数列:

[1, 11, 41, 67, 451, 691, 737, 2747, 7601, 28331, 30217, 46297, 311641, 509267, 1898177, 20879947]

約数ペア:

[(1, 20879947), (11, 1898177), (41, 509267), (67, 311641), (451, 46297), (691, 30217), (737, 28331), (2747, 7601)]