2945621721

素因数分解:

$3^1\times 7^2\times {\mathrm{20038243}}^1$

素因数の和:20038260

約数の個数: 12

約数和(自身を含む): 4568719632

約数和(自身を除く): 1623097911

約数列:

[1, 3, 7, 21, 49, 147, 20038243, 60114729, 140267701, 420803103, 981873907, 2945621721]

約数ペア:

[(1, 2945621721), (3, 981873907), (7, 420803103), (21, 140267701), (49, 60114729), (147, 20038243)]