20643489

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{3217}}^1$

素因数の和:3277

約数の個数: 24

約数和(自身を含む): 32128512

約数和(自身を除く): 11485023

約数列:

[1, 3, 9, 23, 31, 69, 93, 207, 279, 713, 2139, 3217, 6417, 9651, 28953, 73991, 99727, 221973, 299181, 665919, 897543, 2293721, 6881163, 20643489]

約数ペア:

[(1, 20643489), (3, 6881163), (9, 2293721), (23, 897543), (31, 665919), (69, 299181), (93, 221973), (207, 99727), (279, 73991), (713, 28953), (2139, 9651), (3217, 6417)]