1999809

素因数分解:

$3^4\times 7^1\times {\mathrm{3527}}^1$

素因数の和:3546

約数の個数: 20

約数和(自身を含む): 3415104

約数和(自身を除く): 1415295

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 3527, 10581, 24689, 31743, 74067, 95229, 222201, 285687, 666603, 1999809]

約数ペア:

[(1, 1999809), (3, 666603), (7, 285687), (9, 222201), (21, 95229), (27, 74067), (63, 31743), (81, 24689), (189, 10581), (567, 3527)]