20420477

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1627}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 25631232

約数和(自身を除く): 5210755

約数列:

[1, 7, 11, 77, 163, 1141, 1627, 1793, 11389, 12551, 17897, 125279, 265201, 1856407, 2917211, 20420477]

約数ペア:

[(1, 20420477), (7, 2917211), (11, 1856407), (77, 265201), (163, 125279), (1141, 17897), (1627, 12551), (1793, 11389)]