20428604

素因数分解:

$2^2\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1733}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 40977888

約数和(自身を除く): 20549284

約数列:

[1, 2, 4, 7, 14, 28, 421, 842, 1684, 1733, 2947, 3466, 5894, 6932, 11788, 12131, 24262, 48524, 729593, 1459186, 2918372, 5107151, 10214302, 20428604]

約数ペア:

[(1, 20428604), (2, 10214302), (4, 5107151), (7, 2918372), (14, 1459186), (28, 729593), (421, 48524), (842, 24262), (1684, 12131), (1733, 11788), (2947, 6932), (3466, 5894)]