20556442

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{2011}}^1$

素因数の和:2301

約数の個数: 16

約数和(自身を含む): 32594400

約数和(自身を除く): 12037958

約数列:

[1, 2, 19, 38, 269, 538, 2011, 4022, 5111, 10222, 38209, 76418, 540959, 1081918, 10278221, 20556442]

約数ペア:

[(1, 20556442), (2, 10278221), (19, 1081918), (38, 540959), (269, 76418), (538, 38209), (2011, 10222), (4022, 5111)]