128213991

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{385027}}^1$

素因数の和:385070

約数の個数: 12

約数和(自身を含む): 190203832

約数和(自身を除く): 61989841

約数列:

[1, 3, 9, 37, 111, 333, 385027, 1155081, 3465243, 14245999, 42737997, 128213991]

約数ペア:

[(1, 128213991), (3, 42737997), (9, 14245999), (37, 3465243), (111, 1155081), (333, 385027)]