20678441

素因数分解:

$7^3\times {\mathrm{19}}^2\times {\mathrm{167}}^1$

素因数の和:226

約数の個数: 24

約数和(自身を含む): 25603200

約数和(自身を除く): 4924759

約数列:

[1, 7, 19, 49, 133, 167, 343, 361, 931, 1169, 2527, 3173, 6517, 8183, 17689, 22211, 57281, 60287, 123823, 155477, 422009, 1088339, 2954063, 20678441]

約数ペア:

[(1, 20678441), (7, 2954063), (19, 1088339), (49, 422009), (133, 155477), (167, 123823), (343, 60287), (361, 57281), (931, 22211), (1169, 17689), (2527, 8183), (3173, 6517)]