20427498

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4157}}^1$

素因数の和:4188

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 35456022

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 27, 39, 42, 54, 63, 78, 91, 117, 126, 182, 189, 234, 273, 351, 378, 546, 702, 819, 1638, 2457, 4157, 4914, 8314, 12471, 24942, 29099, 37413, 54041, 58198, 74826, 87297, 108082, 112239, 162123, 174594, 224478, 261891, 324246, 378287, 486369, 523782, 756574, 785673, 972738, 1134861, 1459107, 1571346, 2269722, 2918214, 3404583, 6809166, 10213749, 20427498]

約数ペア:

[(1, 20427498), (2, 10213749), (3, 6809166), (6, 3404583), (7, 2918214), (9, 2269722), (13, 1571346), (14, 1459107), (18, 1134861), (21, 972738), (26, 785673), (27, 756574), (39, 523782), (42, 486369), (54, 378287), (63, 324246), (78, 261891), (91, 224478), (117, 174594), (126, 162123), (182, 112239), (189, 108082), (234, 87297), (273, 74826), (351, 58198), (378, 54041), (546, 37413), (702, 29099), (819, 24942), (1638, 12471), (2457, 8314), (4157, 4914)]