12890178

素因数分解:

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

素因数の和:451

約数の個数: 64

約数和(自身を含む): 33219840

約数和(自身を除く): 20329662

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 243, 378, 421, 486, 567, 729, 842, 1134, 1263, 1458, 1701, 2187, 2526, 2947, 3402, 3789, 4374, 5103, 5894, 7578, 8841, 10206, 11367, 15309, 17682, 22734, 26523, 30618, 34101, 53046, 68202, 79569, 102303, 159138, 204606, 238707, 306909, 477414, 613818, 716121, 920727, 1432242, 1841454, 2148363, 4296726, 6445089, 12890178]

約数ペア:

[(1, 12890178), (2, 6445089), (3, 4296726), (6, 2148363), (7, 1841454), (9, 1432242), (14, 920727), (18, 716121), (21, 613818), (27, 477414), (42, 306909), (54, 238707), (63, 204606), (81, 159138), (126, 102303), (162, 79569), (189, 68202), (243, 53046), (378, 34101), (421, 30618), (486, 26523), (567, 22734), (729, 17682), (842, 15309), (1134, 11367), (1263, 10206), (1458, 8841), (1701, 7578), (2187, 5894), (2526, 5103), (2947, 4374), (3402, 3789)]