19901254

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1\times {\mathrm{857}}^1$

素因数の和:1559

約数の個数: 16

約数和(自身を含む): 31691088

約数和(自身を除く): 11789834

約数列:

[1, 2, 17, 34, 683, 857, 1366, 1714, 11611, 14569, 23222, 29138, 585331, 1170662, 9950627, 19901254]

約数ペア:

[(1, 19901254), (2, 9950627), (17, 1170662), (34, 585331), (683, 29138), (857, 23222), (1366, 14569), (1714, 11611)]