2018569725

素因数分解:

$3^2\times 5^2\times {\mathrm{8971421}}^1$

素因数の和:8971437

約数の個数: 18

約数和(自身を含む): 3615483066

約数和(自身を除く): 1596913341

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 8971421, 26914263, 44857105, 80742789, 134571315, 224285525, 403713945, 672856575, 2018569725]

約数ペア:

[(1, 2018569725), (3, 672856575), (5, 403713945), (9, 224285525), (15, 134571315), (25, 80742789), (45, 44857105), (75, 26914263), (225, 8971421)]