1281621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{547}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 1893888

約数和(自身を除く): 612267

約数列:

[1, 3, 11, 33, 71, 213, 547, 781, 1641, 2343, 6017, 18051, 38837, 116511, 427207, 1281621]

約数ペア:

[(1, 1281621), (3, 427207), (11, 116511), (33, 38837), (71, 18051), (213, 6017), (547, 2343), (781, 1641)]