20581649

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{821}}^1$

素因数の和:928

約数の個数: 16

約数和(自身を含む): 23436864

約数和(自身を除く): 2855215

約数列:

[1, 11, 43, 53, 473, 583, 821, 2279, 9031, 25069, 35303, 43513, 388333, 478643, 1871059, 20581649]

約数ペア:

[(1, 20581649), (11, 1871059), (43, 478643), (53, 388333), (473, 43513), (583, 35303), (821, 25069), (2279, 9031)]