26980289

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{1427}}^1$

素因数の和:1544

約数の個数: 16

約数和(自身を含む): 32124288

約数和(自身を除く): 5143999

約数列:

[1, 7, 37, 73, 259, 511, 1427, 2701, 9989, 18907, 52799, 104171, 369593, 729197, 3854327, 26980289]

約数ペア:

[(1, 26980289), (7, 3854327), (37, 729197), (73, 369593), (259, 104171), (511, 52799), (1427, 18907), (2701, 9989)]