20788053

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1105

約数の個数: 32

約数和(自身を含む): 33288192

約数和(自身を除く): 12500139

約数列:

[1, 3, 11, 13, 33, 39, 47, 141, 143, 429, 517, 611, 1031, 1551, 1833, 3093, 6721, 11341, 13403, 20163, 34023, 40209, 48457, 145371, 147433, 442299, 533027, 629941, 1599081, 1889823, 6929351, 20788053]

約数ペア:

[(1, 20788053), (3, 6929351), (11, 1889823), (13, 1599081), (33, 629941), (39, 533027), (47, 442299), (141, 147433), (143, 145371), (429, 48457), (517, 40209), (611, 34023), (1031, 20163), (1551, 13403), (1833, 11341), (3093, 6721)]