19611988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{7307}}^1$

素因数の和:7383

約数の個数: 24

約数和(自身を含む): 38060064

約数和(自身を除く): 18448076

約数列:

[1, 2, 4, 11, 22, 44, 61, 122, 244, 671, 1342, 2684, 7307, 14614, 29228, 80377, 160754, 321508, 445727, 891454, 1782908, 4902997, 9805994, 19611988]

約数ペア:

[(1, 19611988), (2, 9805994), (4, 4902997), (11, 1782908), (22, 891454), (44, 445727), (61, 321508), (122, 160754), (244, 80377), (671, 29228), (1342, 14614), (2684, 7307)]