18894939

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7561}}^1$

素因数の和:7595

約数の個数: 24

約数和(自身を含む): 31034448

約数和(自身を除く): 12139509

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7561, 22683, 52927, 128537, 158781, 370489, 385611, 899759, 1111467, 2699277, 6298313, 18894939]

約数ペア:

[(1, 18894939), (3, 6298313), (7, 2699277), (17, 1111467), (21, 899759), (49, 385611), (51, 370489), (119, 158781), (147, 128537), (357, 52927), (833, 22683), (2499, 7561)]