199905885

素因数分解:

$3^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{18433}}^1$

素因数の和:18685

約数の個数: 24

約数和(自身を含む): 347960184

約数和(自身を除く): 148054299

約数列:

[1, 3, 5, 9, 15, 45, 241, 723, 1205, 2169, 3615, 10845, 18433, 55299, 92165, 165897, 276495, 829485, 4442353, 13327059, 22211765, 39981177, 66635295, 199905885]

約数ペア:

[(1, 199905885), (3, 66635295), (5, 39981177), (9, 22211765), (15, 13327059), (45, 4442353), (241, 829485), (723, 276495), (1205, 165897), (2169, 92165), (3615, 55299), (10845, 18433)]