20738847

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2\times {\mathrm{107}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 29683584

約数和(自身を除く): 8944737

約数列:

[1, 3, 23, 53, 69, 107, 159, 321, 1219, 2461, 2809, 3657, 5671, 7383, 8427, 17013, 64607, 130433, 193821, 300563, 391299, 901689, 6912949, 20738847]

約数ペア:

[(1, 20738847), (3, 6912949), (23, 901689), (53, 391299), (69, 300563), (107, 193821), (159, 130433), (321, 64607), (1219, 17013), (2461, 8427), (2809, 7383), (3657, 5671)]