20339571

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1511}}^1$

素因数の和:2162

約数の個数: 16

約数和(自身を含む): 31062528

約数和(自身を除く): 10722957

約数列:

[1, 3, 7, 21, 641, 1511, 1923, 4487, 4533, 10577, 13461, 31731, 968551, 2905653, 6779857, 20339571]

約数ペア:

[(1, 20339571), (3, 6779857), (7, 2905653), (21, 968551), (641, 31731), (1511, 13461), (1923, 10577), (4487, 4533)]