19949188

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{30977}}^1$

素因数の和:31011

約数の個数: 24

約数和(自身を含む): 41634432

約数和(自身を除く): 21685244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 30977, 61954, 123908, 216839, 433678, 712471, 867356, 1424942, 2849884, 4987297, 9974594, 19949188]

約数ペア:

[(1, 19949188), (2, 9974594), (4, 4987297), (7, 2849884), (14, 1424942), (23, 867356), (28, 712471), (46, 433678), (92, 216839), (161, 123908), (322, 61954), (644, 30977)]