21075117

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23339}}^1$

素因数の和:23392

約数の個数: 16

約数和(自身を含む): 32862720

約数和(自身を除く): 11787603

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 23339, 70017, 163373, 490119, 1003577, 3010731, 7025039, 21075117]

約数ペア:

[(1, 21075117), (3, 7025039), (7, 3010731), (21, 1003577), (43, 490119), (129, 163373), (301, 70017), (903, 23339)]