21248249

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 25528608

約数和(自身を除く): 4280359

約数列:

[1, 11, 17, 37, 83, 187, 407, 629, 913, 1369, 1411, 3071, 6919, 15059, 15521, 23273, 33781, 52207, 113627, 256003, 574277, 1249897, 1931659, 21248249]

約数ペア:

[(1, 21248249), (11, 1931659), (17, 1249897), (37, 574277), (83, 256003), (187, 113627), (407, 52207), (629, 33781), (913, 23273), (1369, 15521), (1411, 15059), (3071, 6919)]