19708819

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:378

約数の個数: 16

約数和(自身を含む): 21821184

約数和(自身を除く): 2112365

約数列:

[1, 13, 71, 131, 163, 923, 1703, 2119, 9301, 11573, 21353, 120913, 150449, 277589, 1516063, 19708819]

約数ペア:

[(1, 19708819), (13, 1516063), (71, 277589), (131, 150449), (163, 120913), (923, 21353), (1703, 11573), (2119, 9301)]