21729176

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{6361}}^1$

素因数の和:6435

約数の個数: 32

約数和(自身を含む): 47333280

約数和(自身を除く): 25604104

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 244, 427, 488, 854, 1708, 3416, 6361, 12722, 25444, 44527, 50888, 89054, 178108, 356216, 388021, 776042, 1552084, 2716147, 3104168, 5432294, 10864588, 21729176]

約数ペア:

[(1, 21729176), (2, 10864588), (4, 5432294), (7, 3104168), (8, 2716147), (14, 1552084), (28, 776042), (56, 388021), (61, 356216), (122, 178108), (244, 89054), (427, 50888), (488, 44527), (854, 25444), (1708, 12722), (3416, 6361)]