20834247

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18719}}^1$

素因数の和:18782

約数の個数: 16

約数和(自身を含む): 32348160

約数和(自身を除く): 11513913

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18719, 56157, 131033, 393099, 992107, 2976321, 6944749, 20834247]

約数ペア:

[(1, 20834247), (3, 6944749), (7, 2976321), (21, 992107), (53, 393099), (159, 131033), (371, 56157), (1113, 18719)]