17980319

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{3851}}^1$

素因数の和:3910

約数の個数: 16

約数和(自身を含む): 22187520

約数和(自身を除く): 4207201

約数列:

[1, 7, 23, 29, 161, 203, 667, 3851, 4669, 26957, 88573, 111679, 620011, 781753, 2568617, 17980319]

約数ペア:

[(1, 17980319), (7, 2568617), (23, 781753), (29, 620011), (161, 111679), (203, 88573), (667, 26957), (3851, 4669)]