25440639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{63761}}^1$

素因数の和:63790

約数の個数: 16

約数和(自身を含む): 40807680

約数和(自身を除く): 15367041

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 63761, 191283, 446327, 1211459, 1338981, 3634377, 8480213, 25440639]

約数ペア:

[(1, 25440639), (3, 8480213), (7, 3634377), (19, 1338981), (21, 1211459), (57, 446327), (133, 191283), (399, 63761)]