18920678

素因数分解:

$2^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{4987}}^1$

素因数の和:5267

約数の個数: 16

約数和(自身を含む): 32561664

約数和(自身を除く): 13640986

約数列:

[1, 2, 7, 14, 271, 542, 1897, 3794, 4987, 9974, 34909, 69818, 1351477, 2702954, 9460339, 18920678]

約数ペア:

[(1, 18920678), (2, 9460339), (7, 2702954), (14, 1351477), (271, 69818), (542, 34909), (1897, 9974), (3794, 4987)]