128522289

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{322111}}^1$

素因数の和:322140

約数の個数: 16

約数和(自身を含む): 206151680

約数和(自身を除く): 77629391

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 322111, 966333, 2254777, 6120109, 6764331, 18360327, 42840763, 128522289]

約数ペア:

[(1, 128522289), (3, 42840763), (7, 18360327), (19, 6764331), (21, 6120109), (57, 2254777), (133, 966333), (399, 322111)]