18870399

素因数分解:

$3^2\times {\mathrm{641}}^1\times {\mathrm{3271}}^1$

素因数の和:3918

約数の個数: 12

約数和(自身を含む): 27308112

約数和(自身を除く): 8437713

約数列:

[1, 3, 9, 641, 1923, 3271, 5769, 9813, 29439, 2096711, 6290133, 18870399]

約数ペア:

[(1, 18870399), (3, 6290133), (9, 2096711), (641, 29439), (1923, 9813), (3271, 5769)]