18891190

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43933}}^1$

素因数の和:43983

約数の個数: 16

約数和(自身を含む): 34795728

約数和(自身を除く): 15904538

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 43933, 87866, 219665, 439330, 1889119, 3778238, 9445595, 18891190]

約数ペア:

[(1, 18891190), (2, 9445595), (5, 3778238), (10, 1889119), (43, 439330), (86, 219665), (215, 87866), (430, 43933)]