81170971

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{547}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 104163840

約数和(自身を除く): 22992869

約数列:

[1, 7, 17, 29, 43, 119, 203, 301, 493, 547, 731, 1247, 3451, 3829, 5117, 8729, 9299, 15863, 21199, 23521, 65093, 111041, 148393, 164647, 269671, 399857, 682109, 1887697, 2798999, 4774763, 11595853, 81170971]

約数ペア:

[(1, 81170971), (7, 11595853), (17, 4774763), (29, 2798999), (43, 1887697), (119, 682109), (203, 399857), (301, 269671), (493, 164647), (547, 148393), (731, 111041), (1247, 65093), (3451, 23521), (3829, 21199), (5117, 15863), (8729, 9299)]