18853995

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29231}}^1$

素因数の和:29282

約数の個数: 16

約数和(自身を含む): 30868992

約数和(自身を除く): 12014997

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 29231, 87693, 146155, 438465, 1256933, 3770799, 6284665, 18853995]

約数ペア:

[(1, 18853995), (3, 6284665), (5, 3770799), (15, 1256933), (43, 438465), (129, 146155), (215, 87693), (645, 29231)]