19913168

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{113143}}^1$

素因数の和:113162

約数の個数: 20

約数和(自身を含む): 42089568

約数和(自身を除く): 22176400

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 113143, 226286, 452572, 905144, 1244573, 1810288, 2489146, 4978292, 9956584, 19913168]

約数ペア:

[(1, 19913168), (2, 9956584), (4, 4978292), (8, 2489146), (11, 1810288), (16, 1244573), (22, 905144), (44, 452572), (88, 226286), (176, 113143)]