21909734

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{142271}}^1$

素因数の和:142291

約数の個数: 16

約数和(自身を含む): 40974336

約数和(自身を除く): 19064602

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 142271, 284542, 995897, 1564981, 1991794, 3129962, 10954867, 21909734]

約数ペア:

[(1, 21909734), (2, 10954867), (7, 3129962), (11, 1991794), (14, 1564981), (22, 995897), (77, 284542), (154, 142271)]