28978089

素因数分解:

$3^1\times 7^1\times {\mathrm{967}}^1\times {\mathrm{1427}}^1$

素因数の和:2404

約数の個数: 16

約数和(自身を含む): 44233728

約数和(自身を除く): 15255639

約数列:

[1, 3, 7, 21, 967, 1427, 2901, 4281, 6769, 9989, 20307, 29967, 1379909, 4139727, 9659363, 28978089]

約数ペア:

[(1, 28978089), (3, 9659363), (7, 4139727), (21, 1379909), (967, 29967), (1427, 20307), (2901, 9989), (4281, 6769)]