19861655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{1091}}^1$

素因数の和:1438

約数の個数: 16

約数和(自身を含む): 26103168

約数和(自身を除く): 6241513

約数列:

[1, 5, 11, 55, 331, 1091, 1655, 3641, 5455, 12001, 18205, 60005, 361121, 1805605, 3972331, 19861655]

約数ペア:

[(1, 19861655), (5, 3972331), (11, 1805605), (55, 361121), (331, 60005), (1091, 18205), (1655, 12001), (3641, 5455)]