13421805

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20809}}^1$

素因数の和:20860

約数の個数: 16

約数和(自身を含む): 21975360

約数和(自身を除く): 8553555

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 20809, 62427, 104045, 312135, 894787, 2684361, 4473935, 13421805]

約数ペア:

[(1, 13421805), (3, 4473935), (5, 2684361), (15, 894787), (43, 312135), (129, 104045), (215, 62427), (645, 20809)]