20194317

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1$

素因数の和:131

約数の個数: 72

約数和(自身を含む): 36998208

約数和(自身を除く): 16803891

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 71, 99, 117, 143, 153, 169, 187, 213, 221, 429, 507, 561, 639, 663, 781, 923, 1207, 1287, 1521, 1683, 1859, 1989, 2343, 2431, 2769, 2873, 3621, 5577, 7029, 7293, 8307, 8619, 10153, 10863, 11999, 13277, 15691, 16731, 21879, 25857, 30459, 31603, 35997, 39831, 47073, 91377, 94809, 107991, 119493, 131989, 141219, 172601, 203983, 284427, 395967, 517803, 611949, 1187901, 1553409, 1835847, 2243813, 6731439, 20194317]

約数ペア:

[(1, 20194317), (3, 6731439), (9, 2243813), (11, 1835847), (13, 1553409), (17, 1187901), (33, 611949), (39, 517803), (51, 395967), (71, 284427), (99, 203983), (117, 172601), (143, 141219), (153, 131989), (169, 119493), (187, 107991), (213, 94809), (221, 91377), (429, 47073), (507, 39831), (561, 35997), (639, 31603), (663, 30459), (781, 25857), (923, 21879), (1207, 16731), (1287, 15691), (1521, 13277), (1683, 11999), (1859, 10863), (1989, 10153), (2343, 8619), (2431, 8307), (2769, 7293), (2873, 7029), (3621, 5577)]