18850489

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{523}}^1$

素因数の和:820

約数の個数: 16

約数和(自身を含む): 22804480

約数和(自身を除く): 3953991

約数列:

[1, 7, 19, 133, 271, 523, 1897, 3661, 5149, 9937, 36043, 69559, 141733, 992131, 2692927, 18850489]

約数ペア:

[(1, 18850489), (7, 2692927), (19, 992131), (133, 141733), (271, 69559), (523, 36043), (1897, 9937), (3661, 5149)]