20809956

素因数分解:

$2^2\times 3^1\times {\mathrm{509}}^1\times {\mathrm{3407}}^1$

素因数の和:3923

約数の個数: 24

約数和(自身を含む): 48666240

約数和(自身を除く): 27856284

約数列:

[1, 2, 3, 4, 6, 12, 509, 1018, 1527, 2036, 3054, 3407, 6108, 6814, 10221, 13628, 20442, 40884, 1734163, 3468326, 5202489, 6936652, 10404978, 20809956]

約数ペア:

[(1, 20809956), (2, 10404978), (3, 6936652), (4, 5202489), (6, 3468326), (12, 1734163), (509, 40884), (1018, 20442), (1527, 13628), (2036, 10221), (3054, 6814), (3407, 6108)]