18572519

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{19949}}^1$

素因数の和:19982

約数の個数: 12

約数和(自身を含む): 22743000

約数和(自身を除く): 4170481

約数列:

[1, 7, 19, 49, 133, 931, 19949, 139643, 379031, 977501, 2653217, 18572519]

約数ペア:

[(1, 18572519), (7, 2653217), (19, 977501), (49, 379031), (133, 139643), (931, 19949)]