21435155

素因数分解:

$5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{1171}}^1$

素因数の和:1706

約数の個数: 16

約数和(自身を含む): 29478144

約数和(自身を除く): 8042989

約数列:

[1, 5, 7, 35, 523, 1171, 2615, 3661, 5855, 8197, 18305, 40985, 612433, 3062165, 4287031, 21435155]

約数ペア:

[(1, 21435155), (5, 4287031), (7, 3062165), (35, 612433), (523, 40985), (1171, 18305), (2615, 8197), (3661, 5855)]