20151215

素因数分解:

$5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{2389}}^1$

素因数の和:2642

約数の個数: 16

約数和(自身を含む): 27762240

約数和(自身を除く): 7611025

約数列:

[1, 5, 7, 35, 241, 1205, 1687, 2389, 8435, 11945, 16723, 83615, 575749, 2878745, 4030243, 20151215]

約数ペア:

[(1, 20151215), (5, 4030243), (7, 2878745), (35, 575749), (241, 83615), (1205, 16723), (1687, 11945), (2389, 8435)]