18655231

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{16553}}^1$

素因数の和:16590

約数の個数: 12

約数和(自身を含む): 22645872

約数和(自身を除く): 3990641

約数列:

[1, 7, 23, 49, 161, 1127, 16553, 115871, 380719, 811097, 2665033, 18655231]

約数ペア:

[(1, 18655231), (7, 2665033), (23, 811097), (49, 380719), (161, 115871), (1127, 16553)]