81455517

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 152664960

約数和(自身を除く): 71209443

約数列:

[1, 3, 9, 11, 13, 17, 27, 33, 39, 51, 73, 99, 117, 143, 153, 187, 219, 221, 289, 297, 351, 429, 459, 561, 657, 663, 803, 867, 949, 1241, 1287, 1683, 1971, 1989, 2409, 2431, 2601, 2847, 3179, 3723, 3757, 3861, 5049, 5967, 7227, 7293, 7803, 8541, 9537, 10439, 11169, 11271, 13651, 16133, 21097, 21681, 21879, 25623, 28611, 31317, 33507, 33813, 40953, 41327, 48399, 63291, 65637, 85833, 93951, 101439, 122859, 123981, 145197, 177463, 189873, 232067, 274261, 281853, 368577, 371943, 435591, 532389, 569619, 696201, 822783, 1115829, 1597167, 2088603, 2468349, 3016871, 4791501, 6265809, 7405047, 9050613, 27151839, 81455517]

約数ペア:

[(1, 81455517), (3, 27151839), (9, 9050613), (11, 7405047), (13, 6265809), (17, 4791501), (27, 3016871), (33, 2468349), (39, 2088603), (51, 1597167), (73, 1115829), (99, 822783), (117, 696201), (143, 569619), (153, 532389), (187, 435591), (219, 371943), (221, 368577), (289, 281853), (297, 274261), (351, 232067), (429, 189873), (459, 177463), (561, 145197), (657, 123981), (663, 122859), (803, 101439), (867, 93951), (949, 85833), (1241, 65637), (1287, 63291), (1683, 48399), (1971, 41327), (1989, 40953), (2409, 33813), (2431, 33507), (2601, 31317), (2847, 28611), (3179, 25623), (3723, 21879), (3757, 21681), (3861, 21097), (5049, 16133), (5967, 13651), (7227, 11271), (7293, 11169), (7803, 10439), (8541, 9537)]