242649891

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{17}}^2\times {\mathrm{257}}^1$

素因数の和:322

約数の個数: 72

約数和(自身を含む): 421375920

約数和(自身を除く): 178726029

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 99, 121, 153, 187, 257, 289, 297, 363, 459, 561, 771, 867, 1089, 1683, 2057, 2313, 2601, 2827, 3179, 3267, 4369, 5049, 6171, 6939, 7803, 8481, 9537, 13107, 18513, 25443, 28611, 31097, 34969, 39321, 48059, 55539, 74273, 76329, 85833, 93291, 104907, 117963, 144177, 222819, 279873, 314721, 432531, 528649, 668457, 817003, 839619, 944163, 1297593, 1585947, 2005371, 2451009, 4757841, 7353027, 8987033, 14273523, 22059081, 26961099, 80883297, 242649891]

約数ペア:

[(1, 242649891), (3, 80883297), (9, 26961099), (11, 22059081), (17, 14273523), (27, 8987033), (33, 7353027), (51, 4757841), (99, 2451009), (121, 2005371), (153, 1585947), (187, 1297593), (257, 944163), (289, 839619), (297, 817003), (363, 668457), (459, 528649), (561, 432531), (771, 314721), (867, 279873), (1089, 222819), (1683, 144177), (2057, 117963), (2313, 104907), (2601, 93291), (2827, 85833), (3179, 76329), (3267, 74273), (4369, 55539), (5049, 48059), (6171, 39321), (6939, 34969), (7803, 31097), (8481, 28611), (9537, 25443), (13107, 18513)]