51481287

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 93523248

約数和(自身を除く): 42041961

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 117, 143, 153, 169, 181, 187, 221, 429, 507, 543, 561, 663, 1287, 1521, 1629, 1683, 1859, 1989, 1991, 2353, 2431, 2873, 3077, 5577, 5973, 7059, 7293, 8619, 9231, 16731, 17919, 21177, 21879, 25857, 25883, 27693, 30589, 31603, 33847, 40001, 77649, 91767, 94809, 101541, 120003, 232947, 275301, 284427, 304623, 336479, 360009, 440011, 520013, 1009437, 1320033, 1560039, 3028311, 3960099, 4680117, 5720143, 17160429, 51481287]

約数ペア:

[(1, 51481287), (3, 17160429), (9, 5720143), (11, 4680117), (13, 3960099), (17, 3028311), (33, 1560039), (39, 1320033), (51, 1009437), (99, 520013), (117, 440011), (143, 360009), (153, 336479), (169, 304623), (181, 284427), (187, 275301), (221, 232947), (429, 120003), (507, 101541), (543, 94809), (561, 91767), (663, 77649), (1287, 40001), (1521, 33847), (1629, 31603), (1683, 30589), (1859, 27693), (1989, 25883), (1991, 25857), (2353, 21879), (2431, 21177), (2873, 17919), (3077, 16731), (5577, 9231), (5973, 8619), (7059, 7293)]