19817872

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9041}}^1$

素因数の和:9186

約数の個数: 20

約数和(自身を含む): 38681676

約数和(自身を除く): 18863804

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9041, 18082, 36164, 72328, 144656, 1238617, 2477234, 4954468, 9908936, 19817872]

約数ペア:

[(1, 19817872), (2, 9908936), (4, 4954468), (8, 2477234), (16, 1238617), (137, 144656), (274, 72328), (548, 36164), (1096, 18082), (2192, 9041)]