28727127

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 52414128

約数和(自身を除く): 23687001

約数列:

[1, 3, 9, 11, 13, 17, 33, 39, 51, 99, 101, 117, 143, 153, 169, 187, 221, 303, 429, 507, 561, 663, 909, 1111, 1287, 1313, 1521, 1683, 1717, 1859, 1989, 2431, 2873, 3333, 3939, 5151, 5577, 7293, 8619, 9999, 11817, 14443, 15453, 16731, 17069, 18887, 21879, 22321, 25857, 31603, 43329, 51207, 56661, 66963, 94809, 129987, 153621, 169983, 187759, 200889, 245531, 284427, 290173, 563277, 736593, 870519, 1689831, 2209779, 2611557, 3191903, 9575709, 28727127]

約数ペア:

[(1, 28727127), (3, 9575709), (9, 3191903), (11, 2611557), (13, 2209779), (17, 1689831), (33, 870519), (39, 736593), (51, 563277), (99, 290173), (101, 284427), (117, 245531), (143, 200889), (153, 187759), (169, 169983), (187, 153621), (221, 129987), (303, 94809), (429, 66963), (507, 56661), (561, 51207), (663, 43329), (909, 31603), (1111, 25857), (1287, 22321), (1313, 21879), (1521, 18887), (1683, 17069), (1717, 16731), (1859, 15453), (1989, 14443), (2431, 11817), (2873, 9999), (3333, 8619), (3939, 7293), (5151, 5577)]