18910115

素因数分解:

$5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1321}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 26016960

約数和(自身を除く): 7106845

約数列:

[1, 5, 7, 35, 409, 1321, 2045, 2863, 6605, 9247, 14315, 46235, 540289, 2701445, 3782023, 18910115]

約数ペア:

[(1, 18910115), (5, 3782023), (7, 2701445), (35, 540289), (409, 46235), (1321, 14315), (2045, 9247), (2863, 6605)]