20351667

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^2\times {\mathrm{103}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 31639296

約数和(自身を除く): 11287629

約数列:

[1, 3, 7, 21, 97, 103, 291, 309, 679, 721, 2037, 2163, 9409, 9991, 28227, 29973, 65863, 69937, 197589, 209811, 969127, 2907381, 6783889, 20351667]

約数ペア:

[(1, 20351667), (3, 6783889), (7, 2907381), (21, 969127), (97, 209811), (103, 197589), (291, 69937), (309, 65863), (679, 29973), (721, 28227), (2037, 9991), (2163, 9409)]