1285546563

素因数分解:

$3^2\times 7^1\times {\mathrm{20405501}}^1$

素因数の和:20405514

約数の個数: 12

約数和(自身を含む): 2122172208

約数和(自身を除く): 836625645

約数列:

[1, 3, 7, 9, 21, 63, 20405501, 61216503, 142838507, 183649509, 428515521, 1285546563]

約数ペア:

[(1, 1285546563), (3, 428515521), (7, 183649509), (9, 142838507), (21, 61216503), (63, 20405501)]