19947636

素因数分解:

$2^2\times 3^2\times {\mathrm{127}}^1\times {\mathrm{4363}}^1$

素因数の和:4500

約数の個数: 36

約数和(自身を含む): 50831872

約数和(自身を除く): 30884236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 127, 254, 381, 508, 762, 1143, 1524, 2286, 4363, 4572, 8726, 13089, 17452, 26178, 39267, 52356, 78534, 157068, 554101, 1108202, 1662303, 2216404, 3324606, 4986909, 6649212, 9973818, 19947636]

約数ペア:

[(1, 19947636), (2, 9973818), (3, 6649212), (4, 4986909), (6, 3324606), (9, 2216404), (12, 1662303), (18, 1108202), (36, 554101), (127, 157068), (254, 78534), (381, 52356), (508, 39267), (762, 26178), (1143, 17452), (1524, 13089), (2286, 8726), (4363, 4572)]