20199109

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5237}}^1$

素因数の和:5292

約数の個数: 16

約数和(自身を含む): 25142400

約数和(自身を除く): 4943291

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5237, 36659, 99503, 151873, 696521, 1063111, 2885587, 20199109]

約数ペア:

[(1, 20199109), (7, 2885587), (19, 1063111), (29, 696521), (133, 151873), (203, 99503), (551, 36659), (3857, 5237)]