20938866

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15791}}^1$

素因数の和:15826

約数の個数: 32

約数和(自身を含む): 47755008

約数和(自身を除く): 26816142

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 221, 442, 663, 1326, 15791, 31582, 47373, 94746, 205283, 268447, 410566, 536894, 615849, 805341, 1231698, 1610682, 3489811, 6979622, 10469433, 20938866]

約数ペア:

[(1, 20938866), (2, 10469433), (3, 6979622), (6, 3489811), (13, 1610682), (17, 1231698), (26, 805341), (34, 615849), (39, 536894), (51, 410566), (78, 268447), (102, 205283), (221, 94746), (442, 47373), (663, 31582), (1326, 15791)]