20985832

素因数分解:

$2^3\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1279}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 24172568

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 293, 586, 1172, 1279, 2051, 2344, 2558, 4102, 5116, 8204, 8953, 10232, 16408, 17906, 35812, 71624, 374747, 749494, 1498988, 2623229, 2997976, 5246458, 10492916, 20985832]

約数ペア:

[(1, 20985832), (2, 10492916), (4, 5246458), (7, 2997976), (8, 2623229), (14, 1498988), (28, 749494), (56, 374747), (293, 71624), (586, 35812), (1172, 17906), (1279, 16408), (2051, 10232), (2344, 8953), (2558, 8204), (4102, 5116)]