18899781

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1\times {\mathrm{431}}^1$

素因数の和:792

約数の個数: 16

約数和(自身を含む): 25878528

約数和(自身を除く): 6978747

約数列:

[1, 3, 47, 141, 311, 431, 933, 1293, 14617, 20257, 43851, 60771, 134041, 402123, 6299927, 18899781]

約数ペア:

[(1, 18899781), (3, 6299927), (47, 402123), (141, 134041), (311, 60771), (431, 43851), (933, 20257), (1293, 14617)]