19886335

素因数分解:

$5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{2503}}^1$

素因数の和:2742

約数の個数: 16

約数和(自身を含む): 27403776

約数和(自身を除く): 7517441

約数列:

[1, 5, 7, 35, 227, 1135, 1589, 2503, 7945, 12515, 17521, 87605, 568181, 2840905, 3977267, 19886335]

約数ペア:

[(1, 19886335), (5, 3977267), (7, 2840905), (35, 568181), (227, 87605), (1135, 17521), (1589, 12515), (2503, 7945)]