168221805

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{260809}}^1$

素因数の和:260860

約数の個数: 16

約数和(自身を含む): 275415360

約数和(自身を除く): 107193555

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 260809, 782427, 1304045, 3912135, 11214787, 33644361, 56073935, 168221805]

約数ペア:

[(1, 168221805), (3, 56073935), (5, 33644361), (15, 11214787), (43, 3912135), (129, 1304045), (215, 782427), (645, 260809)]