20120653

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2659}}^1$

素因数の和:2736

約数の個数: 16

約数和(自身を含む): 24514560

約数和(自身を除く): 4393907

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2659, 7567, 18613, 61157, 124973, 428099, 874811, 2874379, 20120653]

約数ペア:

[(1, 20120653), (7, 2874379), (23, 874811), (47, 428099), (161, 124973), (329, 61157), (1081, 18613), (2659, 7567)]