678381

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:412

約数の個数: 16

約数和(自身を含む): 1005888

約数和(自身を除く): 327507

約数列:

[1, 3, 11, 33, 61, 183, 337, 671, 1011, 2013, 3707, 11121, 20557, 61671, 226127, 678381]

約数ペア:

[(1, 678381), (3, 226127), (11, 61671), (33, 20557), (61, 11121), (183, 3707), (337, 2013), (671, 1011)]