21082734

素因数分解:

$2^1\times 3^3\times {\mathrm{390421}}^1$

素因数の和:390432

約数の個数: 16

約数和(自身を含む): 46850640

約数和(自身を除く): 25767906

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 390421, 780842, 1171263, 2342526, 3513789, 7027578, 10541367, 21082734]

約数ペア:

[(1, 21082734), (2, 10541367), (3, 7027578), (6, 3513789), (9, 2342526), (18, 1171263), (27, 780842), (54, 390421)]