2640789

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{2081}}^1$

素因数の和:2137

約数の個数: 16

約数和(自身を含む): 3997440

約数和(自身を除く): 1356651

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 2081, 6243, 18729, 56187, 97807, 293421, 880263, 2640789]

約数ペア:

[(1, 2640789), (3, 880263), (9, 293421), (27, 97807), (47, 56187), (141, 18729), (423, 6243), (1269, 2081)]