18389903

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{6719}}^1$

素因数の和:6766

約数の個数: 16

約数和(自身を含む): 23224320

約数和(自身を除く): 4834417

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 6719, 47033, 114223, 154537, 799561, 1081759, 2627129, 18389903]

約数ペア:

[(1, 18389903), (7, 2627129), (17, 1081759), (23, 799561), (119, 154537), (161, 114223), (391, 47033), (2737, 6719)]