18890115

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29287}}^1$

素因数の和:29338

約数の個数: 16

約数和(自身を含む): 30928128

約数和(自身を除く): 12038013

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 29287, 87861, 146435, 439305, 1259341, 3778023, 6296705, 18890115]

約数ペア:

[(1, 18890115), (3, 6296705), (5, 3778023), (15, 1259341), (43, 439305), (129, 146435), (215, 87861), (645, 29287)]