20311984

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16487}}^1$

素因数の和:16513

約数の個数: 40

約数和(自身を含む): 49068288

約数和(自身を除く): 28756304

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16487, 32974, 65948, 115409, 131896, 181357, 230818, 263792, 362714, 461636, 725428, 923272, 1269499, 1450856, 1846544, 2538998, 2901712, 5077996, 10155992, 20311984]

約数ペア:

[(1, 20311984), (2, 10155992), (4, 5077996), (7, 2901712), (8, 2538998), (11, 1846544), (14, 1450856), (16, 1269499), (22, 923272), (28, 725428), (44, 461636), (56, 362714), (77, 263792), (88, 230818), (112, 181357), (154, 131896), (176, 115409), (308, 65948), (616, 32974), (1232, 16487)]