28189821

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{5441}}^1$

素因数の和:5612

約数の個数: 16

約数和(自身を含む): 41272128

約数和(自身を除く): 13082307

約数列:

[1, 3, 11, 33, 157, 471, 1727, 5181, 5441, 16323, 59851, 179553, 854237, 2562711, 9396607, 28189821]

約数ペア:

[(1, 28189821), (3, 9396607), (11, 2562711), (33, 854237), (157, 179553), (471, 59851), (1727, 16323), (5181, 5441)]