28206738

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1051}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 72714240

約数和(自身を除く): 44507502

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 71, 126, 142, 189, 213, 378, 426, 497, 639, 994, 1051, 1278, 1491, 1917, 2102, 2982, 3153, 3834, 4473, 6306, 7357, 8946, 9459, 13419, 14714, 18918, 22071, 26838, 28377, 44142, 56754, 66213, 74621, 132426, 149242, 198639, 223863, 397278, 447726, 522347, 671589, 1044694, 1343178, 1567041, 2014767, 3134082, 4029534, 4701123, 9402246, 14103369, 28206738]

約数ペア:

[(1, 28206738), (2, 14103369), (3, 9402246), (6, 4701123), (7, 4029534), (9, 3134082), (14, 2014767), (18, 1567041), (21, 1343178), (27, 1044694), (42, 671589), (54, 522347), (63, 447726), (71, 397278), (126, 223863), (142, 198639), (189, 149242), (213, 132426), (378, 74621), (426, 66213), (497, 56754), (639, 44142), (994, 28377), (1051, 26838), (1278, 22071), (1491, 18918), (1917, 14714), (2102, 13419), (2982, 9459), (3153, 8946), (3834, 7357), (4473, 6306)]