20556184

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1223}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 21745256

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 191, 382, 764, 1223, 1528, 2101, 2446, 4202, 4892, 8404, 9784, 13453, 16808, 26906, 53812, 107624, 233593, 467186, 934372, 1868744, 2569523, 5139046, 10278092, 20556184]

約数ペア:

[(1, 20556184), (2, 10278092), (4, 5139046), (8, 2569523), (11, 1868744), (22, 934372), (44, 467186), (88, 233593), (191, 107624), (382, 53812), (764, 26906), (1223, 16808), (1528, 13453), (2101, 9784), (2446, 8404), (4202, 4892)]