20647319

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1283}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 27323520

約数和(自身を除く): 6676201

約数列:

[1, 7, 11, 19, 77, 121, 133, 209, 847, 1283, 1463, 2299, 8981, 14113, 16093, 24377, 98791, 155243, 170639, 268147, 1086701, 1877029, 2949617, 20647319]

約数ペア:

[(1, 20647319), (7, 2949617), (11, 1877029), (19, 1086701), (77, 268147), (121, 170639), (133, 155243), (209, 98791), (847, 24377), (1283, 16093), (1463, 14113), (2299, 8981)]