28989831

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{6947}}^1$

素因数の和:7070

約数の個数: 16

約数和(自身を含む): 42021504

約数和(自身を除く): 13031673

約数列:

[1, 3, 13, 39, 107, 321, 1391, 4173, 6947, 20841, 90311, 270933, 743329, 2229987, 9663277, 28989831]

約数ペア:

[(1, 28989831), (3, 9663277), (13, 2229987), (39, 743329), (107, 270933), (321, 90311), (1391, 20841), (4173, 6947)]