19810567

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{4243}}^1$

素因数の和:4302

約数の個数: 16

約数和(自身を含む): 24445440

約数和(自身を除く): 4634873

約数列:

[1, 7, 23, 29, 161, 203, 667, 4243, 4669, 29701, 97589, 123047, 683123, 861329, 2830081, 19810567]

約数ペア:

[(1, 19810567), (7, 2830081), (23, 861329), (29, 683123), (161, 123047), (203, 97589), (667, 29701), (4243, 4669)]