21543956

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10837}}^1$

素因数の和:10919

約数の個数: 24

約数和(自身を含む): 43698816

約数和(自身を除く): 22154860

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10837, 21674, 43348, 75859, 151718, 303436, 769427, 1538854, 3077708, 5385989, 10771978, 21543956]

約数ペア:

[(1, 21543956), (2, 10771978), (4, 5385989), (7, 3077708), (14, 1538854), (28, 769427), (71, 303436), (142, 151718), (284, 75859), (497, 43348), (994, 21674), (1988, 10837)]