20163087

素因数分解:

$3^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{827}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 35266176

約数和(自身を除く): 15103089

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 81, 129, 189, 301, 387, 567, 827, 903, 1161, 2481, 2709, 3483, 5789, 7443, 8127, 17367, 22329, 24381, 35561, 52101, 66987, 106683, 156303, 248927, 320049, 468909, 746781, 960147, 2240343, 2880441, 6721029, 20163087]

約数ペア:

[(1, 20163087), (3, 6721029), (7, 2880441), (9, 2240343), (21, 960147), (27, 746781), (43, 468909), (63, 320049), (81, 248927), (129, 156303), (189, 106683), (301, 66987), (387, 52101), (567, 35561), (827, 24381), (903, 22329), (1161, 17367), (2481, 8127), (2709, 7443), (3483, 5789)]