18678507

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{643}}^1$

素因数の和:1090

約数の個数: 16

約数和(自身を含む): 26089728

約数和(自身を除く): 7411221

約数列:

[1, 3, 23, 69, 421, 643, 1263, 1929, 9683, 14789, 29049, 44367, 270703, 812109, 6226169, 18678507]

約数ペア:

[(1, 18678507), (3, 6226169), (23, 812109), (69, 270703), (421, 44367), (643, 29049), (1263, 14789), (1929, 9683)]