20851254

素因数分解:

$2^1\times 3^2\times {\mathrm{971}}^1\times {\mathrm{1193}}^1$

素因数の和:2172

約数の個数: 24

約数和(自身を含む): 45262152

約数和(自身を除く): 24410898

約数列:

[1, 2, 3, 6, 9, 18, 971, 1193, 1942, 2386, 2913, 3579, 5826, 7158, 8739, 10737, 17478, 21474, 1158403, 2316806, 3475209, 6950418, 10425627, 20851254]

約数ペア:

[(1, 20851254), (2, 10425627), (3, 6950418), (6, 3475209), (9, 2316806), (18, 1158403), (971, 21474), (1193, 17478), (1942, 10737), (2386, 8739), (2913, 7158), (3579, 5826)]