18990963

素因数分解:

$3^3\times {\mathrm{347}}^1\times {\mathrm{2027}}^1$

素因数の和:2383

約数の個数: 16

約数和(自身を含む): 28229760

約数和(自身を除く): 9238797

約数列:

[1, 3, 9, 27, 347, 1041, 2027, 3123, 6081, 9369, 18243, 54729, 703369, 2110107, 6330321, 18990963]

約数ペア:

[(1, 18990963), (3, 6330321), (9, 2110107), (27, 703369), (347, 54729), (1041, 18243), (2027, 9369), (3123, 6081)]