20287708

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5531}}^1$

素因数の和:5673

約数の個数: 24

約数和(自身を含む): 40892544

約数和(自身を除く): 20604836

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 5531, 11062, 22124, 38717, 77434, 154868, 724561, 1449122, 2898244, 5071927, 10143854, 20287708]

約数ペア:

[(1, 20287708), (2, 10143854), (4, 5071927), (7, 2898244), (14, 1449122), (28, 724561), (131, 154868), (262, 77434), (524, 38717), (917, 22124), (1834, 11062), (3668, 5531)]