28890988

素因数分解:

$2^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{661}}^1$

素因数の和:902

約数の個数: 36

約数和(自身を含む): 59166912

約数和(自身を除く): 30275924

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 223, 446, 661, 892, 1322, 1561, 2644, 3122, 4627, 6244, 9254, 10927, 18508, 21854, 32389, 43708, 64778, 129556, 147403, 294806, 589612, 1031821, 2063642, 4127284, 7222747, 14445494, 28890988]

約数ペア:

[(1, 28890988), (2, 14445494), (4, 7222747), (7, 4127284), (14, 2063642), (28, 1031821), (49, 589612), (98, 294806), (196, 147403), (223, 129556), (446, 64778), (661, 43708), (892, 32389), (1322, 21854), (1561, 18508), (2644, 10927), (3122, 9254), (4627, 6244)]