28878687

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{4513}}^1$

素因数の和:4604

約数の個数: 20

約数和(自身を含む): 43695520

約数和(自身を除く): 14816833

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 4513, 6399, 13539, 40617, 121851, 356527, 365553, 1069581, 3208743, 9626229, 28878687]

約数ペア:

[(1, 28878687), (3, 9626229), (9, 3208743), (27, 1069581), (79, 365553), (81, 356527), (237, 121851), (711, 40617), (2133, 13539), (4513, 6399)]