21177392

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12143}}^1$

素因数の和:12260

約数の個数: 20

約数和(自身を含む): 41411040

約数和(自身を除く): 20233648

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12143, 24286, 48572, 97144, 194288, 1323587, 2647174, 5294348, 10588696, 21177392]

約数ペア:

[(1, 21177392), (2, 10588696), (4, 5294348), (8, 2647174), (16, 1323587), (109, 194288), (218, 97144), (436, 48572), (872, 24286), (1744, 12143)]