42864309

素因数分解:

$3^4\times {\mathrm{643}}^1\times {\mathrm{823}}^1$

素因数の和:1478

約数の個数: 20

約数和(自身を含む): 64209376

約数和(自身を除く): 21345067

約数列:

[1, 3, 9, 27, 81, 643, 823, 1929, 2469, 5787, 7407, 17361, 22221, 52083, 66663, 529189, 1587567, 4762701, 14288103, 42864309]

約数ペア:

[(1, 42864309), (3, 14288103), (9, 4762701), (27, 1587567), (81, 529189), (643, 66663), (823, 52083), (1929, 22221), (2469, 17361), (5787, 7407)]