20168118

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 45467136

約数和(自身を除く): 25299018

約数列:

[1, 2, 3, 6, 9, 18, 43, 71, 86, 129, 142, 213, 258, 367, 387, 426, 639, 734, 774, 1101, 1278, 2202, 3053, 3303, 6106, 6606, 9159, 15781, 18318, 26057, 27477, 31562, 47343, 52114, 54954, 78171, 94686, 142029, 156342, 234513, 284058, 469026, 1120451, 2240902, 3361353, 6722706, 10084059, 20168118]

約数ペア:

[(1, 20168118), (2, 10084059), (3, 6722706), (6, 3361353), (9, 2240902), (18, 1120451), (43, 469026), (71, 284058), (86, 234513), (129, 156342), (142, 142029), (213, 94686), (258, 78171), (367, 54954), (387, 52114), (426, 47343), (639, 31562), (734, 27477), (774, 26057), (1101, 18318), (1278, 15781), (2202, 9159), (3053, 6606), (3303, 6106)]