81637794

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:467

約数の個数: 112

約数和(自身を含む): 221398080

約数和(自身を除く): 139760286

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 38, 42, 54, 57, 63, 81, 114, 126, 133, 162, 171, 189, 243, 266, 342, 378, 399, 421, 486, 513, 567, 729, 798, 842, 1026, 1134, 1197, 1263, 1458, 1539, 1701, 2394, 2526, 2947, 3078, 3402, 3591, 3789, 4617, 5103, 5894, 7182, 7578, 7999, 8841, 9234, 10206, 10773, 11367, 13851, 15998, 17682, 21546, 22734, 23997, 26523, 27702, 32319, 34101, 47994, 53046, 55993, 64638, 68202, 71991, 79569, 96957, 102303, 111986, 143982, 159138, 167979, 193914, 204606, 215973, 238707, 306909, 335958, 431946, 477414, 503937, 613818, 647919, 716121, 1007874, 1295838, 1432242, 1511811, 1943757, 2148363, 3023622, 3887514, 4296726, 4535433, 5831271, 9070866, 11662542, 13606299, 27212598, 40818897, 81637794]

約数ペア:

[(1, 81637794), (2, 40818897), (3, 27212598), (6, 13606299), (7, 11662542), (9, 9070866), (14, 5831271), (18, 4535433), (19, 4296726), (21, 3887514), (27, 3023622), (38, 2148363), (42, 1943757), (54, 1511811), (57, 1432242), (63, 1295838), (81, 1007874), (114, 716121), (126, 647919), (133, 613818), (162, 503937), (171, 477414), (189, 431946), (243, 335958), (266, 306909), (342, 238707), (378, 215973), (399, 204606), (421, 193914), (486, 167979), (513, 159138), (567, 143982), (729, 111986), (798, 102303), (842, 96957), (1026, 79569), (1134, 71991), (1197, 68202), (1263, 64638), (1458, 55993), (1539, 53046), (1701, 47994), (2394, 34101), (2526, 32319), (2947, 27702), (3078, 26523), (3402, 23997), (3591, 22734), (3789, 21546), (4617, 17682), (5103, 15998), (5894, 13851), (7182, 11367), (7578, 10773), (7999, 10206), (8841, 9234)]