1385759907

素因数分解:

$3^4\times 7^1\times {\mathrm{2444021}}^1$

素因数の和:2444040

約数の個数: 20

約数和(自身を含む): 2365813296

約数和(自身を除く): 980053389

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 2444021, 7332063, 17108147, 21996189, 51324441, 65988567, 153973323, 197965701, 461919969, 1385759907]

約数ペア:

[(1, 1385759907), (3, 461919969), (7, 197965701), (9, 153973323), (21, 65988567), (27, 51324441), (63, 21996189), (81, 17108147), (189, 7332063), (567, 2444021)]