402137379

素因数分解:

$3^4\times 7^1\times {\mathrm{709237}}^1$

素因数の和:709256

約数の個数: 20

約数和(自身を含む): 686542384

約数和(自身を除く): 284405005

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 709237, 2127711, 4964659, 6383133, 14893977, 19149399, 44681931, 57448197, 134045793, 402137379]

約数ペア:

[(1, 402137379), (3, 134045793), (7, 57448197), (9, 44681931), (21, 19149399), (27, 14893977), (63, 6383133), (81, 4964659), (189, 2127711), (567, 709237)]