20571256

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36217}}^1$

素因数の和:36294

約数の個数: 16

約数和(自身を含む): 39115440

約数和(自身を除く): 18544184

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36217, 72434, 144868, 289736, 2571407, 5142814, 10285628, 20571256]

約数ペア:

[(1, 20571256), (2, 10285628), (4, 5142814), (8, 2571407), (71, 289736), (142, 144868), (284, 72434), (568, 36217)]