20986084

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3361}}^1$

素因数の和:3595

約数の個数: 24

約数和(自身を含む): 42172928

約数和(自身を除く): 21186844

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 3361, 6244, 6722, 13444, 23527, 47054, 94108, 749503, 1499006, 2998012, 5246521, 10493042, 20986084]

約数ペア:

[(1, 20986084), (2, 10493042), (4, 5246521), (7, 2998012), (14, 1499006), (28, 749503), (223, 94108), (446, 47054), (892, 23527), (1561, 13444), (3122, 6722), (3361, 6244)]