20070379

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{509}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 23696640

約数和(自身を除く): 3626261

約数列:

[1, 7, 43, 131, 301, 509, 917, 3563, 5633, 21887, 39431, 66679, 153209, 466753, 2867197, 20070379]

約数ペア:

[(1, 20070379), (7, 2867197), (43, 466753), (131, 153209), (301, 66679), (509, 39431), (917, 21887), (3563, 5633)]