127680889

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{18443}}^1$

素因数の和:18516

約数の個数: 16

約数和(自身を含む): 155814912

約数和(自身を除く): 28134023

約数列:

[1, 7, 23, 43, 161, 301, 989, 6923, 18443, 129101, 424189, 793049, 2969323, 5551343, 18240127, 127680889]

約数ペア:

[(1, 127680889), (7, 18240127), (23, 5551343), (43, 2969323), (161, 793049), (301, 424189), (989, 129101), (6923, 18443)]