28572159

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{691}}^1$

素因数の和:891

約数の個数: 32

約数和(自身を含む): 47831040

約数和(自身を除く): 19258881

約数列:

[1, 3, 7, 11, 21, 33, 77, 179, 231, 537, 691, 1253, 1969, 2073, 3759, 4837, 5907, 7601, 13783, 14511, 22803, 41349, 53207, 123689, 159621, 371067, 865823, 1360579, 2597469, 4081737, 9524053, 28572159]

約数ペア:

[(1, 28572159), (3, 9524053), (7, 4081737), (11, 2597469), (21, 1360579), (33, 865823), (77, 371067), (179, 159621), (231, 123689), (537, 53207), (691, 41349), (1253, 22803), (1969, 14511), (2073, 13783), (3759, 7601), (4837, 5907)]