20386257

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{6871}}^1$

素因数の和:6940

約数の個数: 16

約数和(自身を含む): 29027328

約数和(自身を除く): 8641071

約数列:

[1, 3, 23, 43, 69, 129, 989, 2967, 6871, 20613, 158033, 295453, 474099, 886359, 6795419, 20386257]

約数ペア:

[(1, 20386257), (3, 6795419), (23, 886359), (43, 474099), (69, 295453), (129, 158033), (989, 20613), (2967, 6871)]