20161439

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 22404096

約数和(自身を除く): 2242657

約数列:

[1, 17, 31, 67, 527, 571, 1139, 2077, 9707, 17701, 35309, 38257, 300917, 650369, 1185967, 20161439]

約数ペア:

[(1, 20161439), (17, 1185967), (31, 650369), (67, 300917), (527, 38257), (571, 35309), (1139, 17701), (2077, 9707)]