18758719

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{20149}}^1$

素因数の和:20182

約数の個数: 12

約数和(自身を含む): 22971000

約数和(自身を除く): 4212281

約数列:

[1, 7, 19, 49, 133, 931, 20149, 141043, 382831, 987301, 2679817, 18758719]

約数ペア:

[(1, 18758719), (7, 2679817), (19, 987301), (49, 382831), (133, 141043), (931, 20149)]