20153584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2663}}^1$

素因数の和:2725

約数の個数: 40

約数和(自身を含む): 43604352

約数和(自身を除く): 23450768

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2663, 3784, 5326, 7568, 10652, 21304, 29293, 42608, 58586, 114509, 117172, 229018, 234344, 458036, 468688, 916072, 1259599, 1832144, 2519198, 5038396, 10076792, 20153584]

約数ペア:

[(1, 20153584), (2, 10076792), (4, 5038396), (8, 2519198), (11, 1832144), (16, 1259599), (22, 916072), (43, 468688), (44, 458036), (86, 234344), (88, 229018), (172, 117172), (176, 114509), (344, 58586), (473, 42608), (688, 29293), (946, 21304), (1892, 10652), (2663, 7568), (3784, 5326)]