20428856

素因数分解:

$2^3\times 7^1\times {\mathrm{364801}}^1$

素因数の和:364814

約数の個数: 16

約数和(自身を含む): 43776240

約数和(自身を除く): 23347384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 364801, 729602, 1459204, 2553607, 2918408, 5107214, 10214428, 20428856]

約数ペア:

[(1, 20428856), (2, 10214428), (4, 5107214), (7, 2918408), (8, 2553607), (14, 1459204), (28, 729602), (56, 364801)]