19887666

素因数分解:

$2^1\times 3^1\times {\mathrm{641}}^1\times {\mathrm{5171}}^1$

素因数の和:5817

約数の個数: 16

約数和(自身を含む): 39845088

約数和(自身を除く): 19957422

約数列:

[1, 2, 3, 6, 641, 1282, 1923, 3846, 5171, 10342, 15513, 31026, 3314611, 6629222, 9943833, 19887666]

約数ペア:

[(1, 19887666), (2, 9943833), (3, 6629222), (6, 3314611), (641, 31026), (1282, 15513), (1923, 10342), (3846, 5171)]