20987092

素因数分解:

$2^2\times 7^2\times {\mathrm{107077}}^1$

素因数の和:107095

約数の個数: 18

約数和(自身を含む): 42724122

約数和(自身を除く): 21737030

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 107077, 214154, 428308, 749539, 1499078, 2998156, 5246773, 10493546, 20987092]

約数ペア:

[(1, 20987092), (2, 10493546), (4, 5246773), (7, 2998156), (14, 1499078), (28, 749539), (49, 428308), (98, 214154), (196, 107077)]