20942579

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2971}}^1$

素因数の和:3050

約数の個数: 16

約数和(自身を含む): 25678080

約数和(自身を除く): 4735501

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2971, 7049, 20797, 56449, 157463, 395143, 1102241, 2991797, 20942579]

約数ペア:

[(1, 20942579), (7, 2991797), (19, 1102241), (53, 395143), (133, 157463), (371, 56449), (1007, 20797), (2971, 7049)]