20659474

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40829}}^1$

素因数の和:40865

約数の個数: 16

約数和(自身を含む): 35277120

約数和(自身を除く): 14617646

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40829, 81658, 449119, 898238, 939067, 1878134, 10329737, 20659474]

約数ペア:

[(1, 20659474), (2, 10329737), (11, 1878134), (22, 939067), (23, 898238), (46, 449119), (253, 81658), (506, 40829)]