28138382

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{839}}^1$

素因数の和:1291

約数の個数: 16

約数和(自身を含む): 43394400

約数和(自身を除く): 15256018

約数列:

[1, 2, 41, 82, 409, 818, 839, 1678, 16769, 33538, 34399, 68798, 343151, 686302, 14069191, 28138382]

約数ペア:

[(1, 28138382), (2, 14069191), (41, 686302), (82, 343151), (409, 68798), (818, 34399), (839, 33538), (1678, 16769)]