28925721

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{337}}^1$

素因数の和:391

約数の個数: 48

約数和(自身を含む): 49807680

約数和(自身を除く): 20881959

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 153, 187, 289, 297, 337, 459, 561, 867, 1011, 1683, 2601, 3033, 3179, 3707, 5049, 5729, 7803, 9099, 9537, 11121, 17187, 28611, 33363, 51561, 63019, 85833, 97393, 100089, 154683, 189057, 292179, 567171, 876537, 1071323, 1701513, 2629611, 3213969, 9641907, 28925721]

約数ペア:

[(1, 28925721), (3, 9641907), (9, 3213969), (11, 2629611), (17, 1701513), (27, 1071323), (33, 876537), (51, 567171), (99, 292179), (153, 189057), (187, 154683), (289, 100089), (297, 97393), (337, 85833), (459, 63019), (561, 51561), (867, 33363), (1011, 28611), (1683, 17187), (2601, 11121), (3033, 9537), (3179, 9099), (3707, 7803), (5049, 5729)]