19685590

素因数分解:

$2^1\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1951}}^1$

素因数の和:2967

約数の個数: 16

約数和(自身を含む): 35487360

約数和(自身を除く): 15801770

約数列:

[1, 2, 5, 10, 1009, 1951, 2018, 3902, 5045, 9755, 10090, 19510, 1968559, 3937118, 9842795, 19685590]

約数ペア:

[(1, 19685590), (2, 9842795), (5, 3937118), (10, 1968559), (1009, 19510), (1951, 10090), (2018, 9755), (3902, 5045)]