21000773353

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{78191}}^1$

素因数の和:78313

約数の個数: 32

約数和(自身を含む): 26527730688

約数和(自身を除く): 5526957335

約数列:

[1, 7, 17, 37, 61, 119, 259, 427, 629, 1037, 2257, 4403, 7259, 15799, 38369, 78191, 268583, 547337, 1329247, 2893067, 4769651, 9304729, 20251469, 33387557, 49182139, 81084067, 176477087, 344274973, 567588469, 1235339609, 3000110479, 21000773353]

約数ペア:

[(1, 21000773353), (7, 3000110479), (17, 1235339609), (37, 567588469), (61, 344274973), (119, 176477087), (259, 81084067), (427, 49182139), (629, 33387557), (1037, 20251469), (2257, 9304729), (4403, 4769651), (7259, 2893067), (15799, 1329247), (38369, 547337), (78191, 268583)]