28258821

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{6421}}^1$

素因数の和:6593

約数の個数: 16

約数和(自身を含む): 42128320

約数和(自身を除く): 13869499

約数列:

[1, 3, 9, 27, 163, 489, 1467, 4401, 6421, 19263, 57789, 173367, 1046623, 3139869, 9419607, 28258821]

約数ペア:

[(1, 28258821), (3, 9419607), (9, 3139869), (27, 1046623), (163, 173367), (489, 57789), (1467, 19263), (4401, 6421)]