20763885

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{761}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 35551872

約数和(自身を除く): 14787987

約数列:

[1, 3, 5, 15, 17, 51, 85, 107, 255, 321, 535, 761, 1605, 1819, 2283, 3805, 5457, 9095, 11415, 12937, 27285, 38811, 64685, 81427, 194055, 244281, 407135, 1221405, 1384259, 4152777, 6921295, 20763885]

約数ペア:

[(1, 20763885), (3, 6921295), (5, 4152777), (15, 1384259), (17, 1221405), (51, 407135), (85, 244281), (107, 194055), (255, 81427), (321, 64685), (535, 38811), (761, 27285), (1605, 12937), (1819, 11415), (2283, 9095), (3805, 5457)]