20890884

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{248701}}^1$

素因数の和:248715

約数の個数: 24

約数和(自身を含む): 55709248

約数和(自身を除く): 34818364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 248701, 497402, 746103, 994804, 1492206, 1740907, 2984412, 3481814, 5222721, 6963628, 10445442, 20890884]

約数ペア:

[(1, 20890884), (2, 10445442), (3, 6963628), (4, 5222721), (6, 3481814), (7, 2984412), (12, 1740907), (14, 1492206), (21, 994804), (28, 746103), (42, 497402), (84, 248701)]