20958385

素因数分解:

$5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2131}}^1$

素因数の和:2424

約数の個数: 16

約数和(自身を含む): 28858752

約数和(自身を除く): 7900367

約数列:

[1, 5, 7, 35, 281, 1405, 1967, 2131, 9835, 10655, 14917, 74585, 598811, 2994055, 4191677, 20958385]

約数ペア:

[(1, 20958385), (5, 4191677), (7, 2994055), (35, 598811), (281, 74585), (1405, 14917), (1967, 10655), (2131, 9835)]