201912172

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{655559}}^1$

素因数の和:655581

約数の個数: 24

約数和(自身を含む): 440536320

約数和(自身を除く): 238624148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 655559, 1311118, 2622236, 4588913, 7211149, 9177826, 14422298, 18355652, 28844596, 50478043, 100956086, 201912172]

約数ペア:

[(1, 201912172), (2, 100956086), (4, 50478043), (7, 28844596), (11, 18355652), (14, 14422298), (22, 9177826), (28, 7211149), (44, 4588913), (77, 2622236), (154, 1311118), (308, 655559)]