20692808

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2143}}^1$

素因数の和:2237

約数の個数: 32

約数和(自身を含む): 41679360

約数和(自身を除く): 20986552

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2143, 2414, 4286, 4828, 8572, 9656, 17144, 36431, 72862, 145724, 152153, 291448, 304306, 608612, 1217224, 2586601, 5173202, 10346404, 20692808]

約数ペア:

[(1, 20692808), (2, 10346404), (4, 5173202), (8, 2586601), (17, 1217224), (34, 608612), (68, 304306), (71, 291448), (136, 152153), (142, 145724), (284, 72862), (568, 36431), (1207, 17144), (2143, 9656), (2414, 8572), (4286, 4828)]