20149105851

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{172973}}^1$

素因数の和:173072

約数の個数: 36

約数和(自身を含む): 34053737328

約数和(自身を除く): 13904631477

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 1849, 2709, 5547, 12943, 16641, 38829, 116487, 172973, 518919, 1210811, 1556757, 3632433, 7437839, 10897299, 22313517, 52064873, 66940551, 156194619, 319827077, 468583857, 959481231, 2238789539, 2878443693, 6716368617, 20149105851]

約数ペア:

[(1, 20149105851), (3, 6716368617), (7, 2878443693), (9, 2238789539), (21, 959481231), (43, 468583857), (63, 319827077), (129, 156194619), (301, 66940551), (387, 52064873), (903, 22313517), (1849, 10897299), (2709, 7437839), (5547, 3632433), (12943, 1556757), (16641, 1210811), (38829, 518919), (116487, 172973)]