20842444

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2473}}^1$

素因数の和:2534

約数の個数: 36

約数和(自身を含む): 43433544

約数和(自身を除く): 22591100

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2473, 4214, 4946, 8428, 9892, 17311, 34622, 69244, 106339, 121177, 212678, 242354, 425356, 484708, 744373, 1488746, 2977492, 5210611, 10421222, 20842444]

約数ペア:

[(1, 20842444), (2, 10421222), (4, 5210611), (7, 2977492), (14, 1488746), (28, 744373), (43, 484708), (49, 425356), (86, 242354), (98, 212678), (172, 121177), (196, 106339), (301, 69244), (602, 34622), (1204, 17311), (2107, 9892), (2473, 8428), (4214, 4946)]