21204152

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{139501}}^1$

素因数の和:139526

約数の個数: 16

約数和(自身を含む): 41850600

約数和(自身を除く): 20646448

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 139501, 279002, 558004, 1116008, 2650519, 5301038, 10602076, 21204152]

約数ペア:

[(1, 21204152), (2, 10602076), (4, 5301038), (8, 2650519), (19, 1116008), (38, 558004), (76, 279002), (152, 139501)]