21887817

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{24239}}^1$

素因数の和:24292

約数の個数: 16

約数和(自身を含む): 34129920

約数和(自身を除く): 12242103

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 24239, 72717, 169673, 509019, 1042277, 3126831, 7295939, 21887817]

約数ペア:

[(1, 21887817), (3, 7295939), (7, 3126831), (21, 1042277), (43, 509019), (129, 169673), (301, 72717), (903, 24239)]