20477394

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 54172800

約数和(自身を除く): 33695406

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 71, 98, 109, 126, 142, 147, 189, 213, 218, 294, 327, 378, 426, 441, 497, 639, 654, 763, 882, 981, 994, 1278, 1323, 1491, 1526, 1917, 1962, 2289, 2646, 2943, 2982, 3479, 3834, 4473, 4578, 5341, 5886, 6867, 6958, 7739, 8946, 10437, 10682, 13419, 13734, 15478, 16023, 20601, 20874, 23217, 26838, 31311, 32046, 41202, 46434, 48069, 54173, 62622, 69651, 93933, 96138, 108346, 139302, 144207, 162519, 187866, 208953, 288414, 325038, 379211, 417906, 487557, 758422, 975114, 1137633, 1462671, 2275266, 2925342, 3412899, 6825798, 10238697, 20477394]

約数ペア:

[(1, 20477394), (2, 10238697), (3, 6825798), (6, 3412899), (7, 2925342), (9, 2275266), (14, 1462671), (18, 1137633), (21, 975114), (27, 758422), (42, 487557), (49, 417906), (54, 379211), (63, 325038), (71, 288414), (98, 208953), (109, 187866), (126, 162519), (142, 144207), (147, 139302), (189, 108346), (213, 96138), (218, 93933), (294, 69651), (327, 62622), (378, 54173), (426, 48069), (441, 46434), (497, 41202), (639, 32046), (654, 31311), (763, 26838), (882, 23217), (981, 20874), (994, 20601), (1278, 16023), (1323, 15478), (1491, 13734), (1526, 13419), (1917, 10682), (1962, 10437), (2289, 8946), (2646, 7739), (2943, 6958), (2982, 6867), (3479, 5886), (3834, 5341), (4473, 4578)]