18393207

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20369}}^1$

素因数の和:20422

約数の個数: 16

約数和(自身を含む): 28680960

約数和(自身を除く): 10287753

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20369, 61107, 142583, 427749, 875867, 2627601, 6131069, 18393207]

約数ペア:

[(1, 18393207), (3, 6131069), (7, 2627601), (21, 875867), (43, 427749), (129, 142583), (301, 61107), (903, 20369)]