21284617

素因数分解:

${\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23284800

約数和(自身を除く): 2000183

約数列:

[1, 19, 41, 89, 307, 779, 1691, 3649, 5833, 12587, 27323, 69331, 239153, 519137, 1120243, 21284617]

約数ペア:

[(1, 21284617), (19, 1120243), (41, 519137), (89, 239153), (307, 69331), (779, 27323), (1691, 12587), (3649, 5833)]