19827964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{3931}}^1$

素因数の和:4045

約数の個数: 24

約数和(自身を含む): 37762928

約数和(自身を除く): 17934964

約数列:

[1, 2, 4, 13, 26, 52, 97, 194, 388, 1261, 2522, 3931, 5044, 7862, 15724, 51103, 102206, 204412, 381307, 762614, 1525228, 4956991, 9913982, 19827964]

約数ペア:

[(1, 19827964), (2, 9913982), (4, 4956991), (13, 1525228), (26, 762614), (52, 381307), (97, 204412), (194, 102206), (388, 51103), (1261, 15724), (2522, 7862), (3931, 5044)]