20003949

素因数分解:

$3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1997}}^1$

素因数の和:2066

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 14521491

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 159, 189, 371, 477, 1113, 1431, 1997, 3339, 5991, 10017, 13979, 17973, 41937, 53919, 105841, 125811, 317523, 377433, 740887, 952569, 2222661, 2857707, 6667983, 20003949]

約数ペア:

[(1, 20003949), (3, 6667983), (7, 2857707), (9, 2222661), (21, 952569), (27, 740887), (53, 377433), (63, 317523), (159, 125811), (189, 105841), (371, 53919), (477, 41937), (1113, 17973), (1431, 13979), (1997, 10017), (3339, 5991)]