20268478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5281}}^1$

素因数の和:5403

約数の個数: 16

約数和(自身を含む): 32325840

約数和(自身を除く): 12057362

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5281, 10562, 100339, 200678, 533381, 1066762, 10134239, 20268478]

約数ペア:

[(1, 20268478), (2, 10134239), (19, 1066762), (38, 533381), (101, 200678), (202, 100339), (1919, 10562), (3838, 5281)]