28872639

素因数分解:

$3^3\times {\mathrm{499}}^1\times {\mathrm{2143}}^1$

素因数の和:2651

約数の個数: 16

約数和(自身を含む): 42880000

約数和(自身を除く): 14007361

約数列:

[1, 3, 9, 27, 499, 1497, 2143, 4491, 6429, 13473, 19287, 57861, 1069357, 3208071, 9624213, 28872639]

約数ペア:

[(1, 28872639), (3, 9624213), (9, 3208071), (27, 1069357), (499, 57861), (1497, 19287), (2143, 13473), (4491, 6429)]