21165354

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:465

約数の個数: 96

約数和(自身を含む): 57729600

約数和(自身を除く): 36564246

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 49, 54, 57, 63, 98, 114, 126, 133, 147, 171, 189, 266, 294, 342, 378, 399, 421, 441, 513, 798, 842, 882, 931, 1026, 1197, 1263, 1323, 1862, 2394, 2526, 2646, 2793, 2947, 3591, 3789, 5586, 5894, 7182, 7578, 7999, 8379, 8841, 11367, 15998, 16758, 17682, 20629, 22734, 23997, 25137, 26523, 41258, 47994, 50274, 53046, 55993, 61887, 71991, 79569, 111986, 123774, 143982, 159138, 167979, 185661, 215973, 335958, 371322, 391951, 431946, 503937, 556983, 783902, 1007874, 1113966, 1175853, 1511811, 2351706, 3023622, 3527559, 7055118, 10582677, 21165354]

約数ペア:

[(1, 21165354), (2, 10582677), (3, 7055118), (6, 3527559), (7, 3023622), (9, 2351706), (14, 1511811), (18, 1175853), (19, 1113966), (21, 1007874), (27, 783902), (38, 556983), (42, 503937), (49, 431946), (54, 391951), (57, 371322), (63, 335958), (98, 215973), (114, 185661), (126, 167979), (133, 159138), (147, 143982), (171, 123774), (189, 111986), (266, 79569), (294, 71991), (342, 61887), (378, 55993), (399, 53046), (421, 50274), (441, 47994), (513, 41258), (798, 26523), (842, 25137), (882, 23997), (931, 22734), (1026, 20629), (1197, 17682), (1263, 16758), (1323, 15998), (1862, 11367), (2394, 8841), (2526, 8379), (2646, 7999), (2793, 7578), (2947, 7182), (3591, 5894), (3789, 5586)]