18989894

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{123311}}^1$

素因数の和:123331

約数の個数: 16

約数和(自身を含む): 35513856

約数和(自身を除く): 16523962

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 123311, 246622, 863177, 1356421, 1726354, 2712842, 9494947, 18989894]

約数ペア:

[(1, 18989894), (2, 9494947), (7, 2712842), (11, 1726354), (14, 1356421), (22, 863177), (77, 246622), (154, 123311)]