12291021

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{3701}}^1$

素因数の和:3754

約数の個数: 20

約数和(自身を含む): 18813564

約数和(自身を除く): 6522543

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 3701, 11103, 33309, 99927, 151741, 299781, 455223, 1365669, 4097007, 12291021]

約数ペア:

[(1, 12291021), (3, 4097007), (9, 1365669), (27, 455223), (41, 299781), (81, 151741), (123, 99927), (369, 33309), (1107, 11103), (3321, 3701)]