18706910

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21019}}^1$

素因数の和:21115

約数の個数: 16

約数和(自身を含む): 34052400

約数和(自身を除く): 15345490

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 21019, 42038, 105095, 210190, 1870691, 3741382, 9353455, 18706910]

約数ペア:

[(1, 18706910), (2, 9353455), (5, 3741382), (10, 1870691), (89, 210190), (178, 105095), (445, 42038), (890, 21019)]