20807356

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{6367}}^1$

素因数の和:6433

約数の個数: 24

約数和(自身を含む): 39226880

約数和(自身を除く): 18419524

約数列:

[1, 2, 4, 19, 38, 43, 76, 86, 172, 817, 1634, 3268, 6367, 12734, 25468, 120973, 241946, 273781, 483892, 547562, 1095124, 5201839, 10403678, 20807356]

約数ペア:

[(1, 20807356), (2, 10403678), (4, 5201839), (19, 1095124), (38, 547562), (43, 483892), (76, 273781), (86, 241946), (172, 120973), (817, 25468), (1634, 12734), (3268, 6367)]