20413991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1301}}^1$

素因数の和:1402

約数の個数: 16

約数和(自身を含む): 23623488

約数和(自身を除く): 3209497

約数列:

[1, 13, 17, 71, 221, 923, 1207, 1301, 15691, 16913, 22117, 92371, 287521, 1200823, 1570307, 20413991]

約数ペア:

[(1, 20413991), (13, 1570307), (17, 1200823), (71, 287521), (221, 92371), (923, 22117), (1207, 16913), (1301, 15691)]