21538329

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{6691}}^1$

素因数の和:6760

約数の個数: 16

約数和(自身を含む): 30515520

約数和(自身を除く): 8977191

約数列:

[1, 3, 29, 37, 87, 111, 1073, 3219, 6691, 20073, 194039, 247567, 582117, 742701, 7179443, 21538329]

約数ペア:

[(1, 21538329), (3, 7179443), (29, 742701), (37, 582117), (87, 247567), (111, 194039), (1073, 20073), (3219, 6691)]