18970189

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{7507}}^1$

素因数の和:7552

約数の個数: 12

約数和(自身を含む): 22884384

約数和(自身を除く): 3914195

約数列:

[1, 7, 19, 133, 361, 2527, 7507, 52549, 142633, 998431, 2710027, 18970189]

約数ペア:

[(1, 18970189), (7, 2710027), (19, 998431), (133, 142633), (361, 52549), (2527, 7507)]