18139639

素因数分解:

$7^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 21199360

約数和(自身を除く): 3059721

約数列:

[1, 7, 103, 139, 181, 721, 973, 1267, 14317, 18643, 25159, 100219, 130501, 176113, 2591377, 18139639]

約数ペア:

[(1, 18139639), (7, 2591377), (103, 176113), (139, 130501), (181, 100219), (721, 25159), (973, 18643), (1267, 14317)]