778855959

素因数分解:

$3^3\times 7^1\times {\mathrm{4120931}}^1$

素因数の和:4120947

約数の個数: 16

約数和(自身を含む): 1318698240

約数和(自身を除く): 539842281

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 4120931, 12362793, 28846517, 37088379, 86539551, 111265137, 259618653, 778855959]

約数ペア:

[(1, 778855959), (3, 259618653), (7, 111265137), (9, 86539551), (21, 37088379), (27, 28846517), (63, 12362793), (189, 4120931)]