20758507

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2027}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 27743040

約数和(自身を除く): 6984533

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 2027, 10241, 14189, 22297, 38513, 99323, 156079, 269591, 423643, 1092553, 1887137, 2965501, 20758507]

約数ペア:

[(1, 20758507), (7, 2965501), (11, 1887137), (19, 1092553), (49, 423643), (77, 269591), (133, 156079), (209, 99323), (539, 38513), (931, 22297), (1463, 14189), (2027, 10241)]