20147031

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{769}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 30270240

約数和(自身を除く): 10123209

約数列:

[1, 3, 9, 41, 71, 123, 213, 369, 639, 769, 2307, 2911, 6921, 8733, 26199, 31529, 54599, 94587, 163797, 283761, 491391, 2238559, 6715677, 20147031]

約数ペア:

[(1, 20147031), (3, 6715677), (9, 2238559), (41, 491391), (71, 283761), (123, 163797), (213, 94587), (369, 54599), (639, 31529), (769, 26199), (2307, 8733), (2911, 6921)]