20746656007

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3499183}}^1$

素因数の和:3499219

約数の個数: 18

約数和(自身を含む): 26527313904

約数和(自身を除く): 5780657897

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 5929, 3499183, 24494281, 38491013, 171459967, 269437091, 423401143, 1886059637, 2963808001, 20746656007]

約数ペア:

[(1, 20746656007), (7, 2963808001), (11, 1886059637), (49, 423401143), (77, 269437091), (121, 171459967), (539, 38491013), (847, 24494281), (5929, 3499183)]