20984973

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1187}}^1$

素因数の和:1344

約数の個数: 16

約数和(自身を含む): 28740096

約数和(自身を除く): 7755123

約数列:

[1, 3, 71, 83, 213, 249, 1187, 3561, 5893, 17679, 84277, 98521, 252831, 295563, 6994991, 20984973]

約数ペア:

[(1, 20984973), (3, 6994991), (71, 295563), (83, 252831), (213, 98521), (249, 84277), (1187, 17679), (3561, 5893)]