20914426

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1510

約数の個数: 24

約数和(自身を含む): 34784640

約数和(自身を除く): 13870214

約数列:

[1, 2, 13, 26, 43, 86, 169, 338, 559, 1118, 1439, 2878, 7267, 14534, 18707, 37414, 61877, 123754, 243191, 486382, 804401, 1608802, 10457213, 20914426]

約数ペア:

[(1, 20914426), (2, 10457213), (13, 1608802), (26, 804401), (43, 486382), (86, 243191), (169, 123754), (338, 61877), (559, 37414), (1118, 18707), (1439, 14534), (2878, 7267)]