128540879991

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{27518921}}^1$

素因数の和:27519103

約数の個数: 16

約数和(自身を含む): 191531697120

約数和(自身を除く): 62990817129

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4671, 27518921, 82556763, 247670289, 743010867, 4760773333, 14282319999, 42846959997, 128540879991]

約数ペア:

[(1, 128540879991), (3, 42846959997), (9, 14282319999), (27, 4760773333), (173, 743010867), (519, 247670289), (1557, 82556763), (4671, 27518921)]