9809991

素因数分解:

$3^4\times {\mathrm{281}}^1\times {\mathrm{431}}^1$

素因数の和:724

約数の個数: 20

約数和(自身を含む): 14740704

約数和(自身を除く): 4930713

約数列:

[1, 3, 9, 27, 81, 281, 431, 843, 1293, 2529, 3879, 7587, 11637, 22761, 34911, 121111, 363333, 1089999, 3269997, 9809991]

約数ペア:

[(1, 9809991), (3, 3269997), (9, 1089999), (27, 363333), (81, 121111), (281, 34911), (431, 22761), (843, 11637), (1293, 7587), (2529, 3879)]