20167189

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2861}}^1$

素因数の和:2940

約数の個数: 16

約数和(自身を含む): 24727680

約数和(自身を除く): 4560491

約数列:

[1, 7, 19, 53, 133, 371, 1007, 2861, 7049, 20027, 54359, 151633, 380513, 1061431, 2881027, 20167189]

約数ペア:

[(1, 20167189), (7, 2881027), (19, 1061431), (53, 380513), (133, 151633), (371, 54359), (1007, 20027), (2861, 7049)]