16820110

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{18899}}^1$

素因数の和:18995

約数の個数: 16

約数和(自身を含む): 30618000

約数和(自身を除く): 13797890

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 18899, 37798, 94495, 188990, 1682011, 3364022, 8410055, 16820110]

約数ペア:

[(1, 16820110), (2, 8410055), (5, 3364022), (10, 1682011), (89, 188990), (178, 94495), (445, 37798), (890, 18899)]