19871258

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{4729}}^1$

素因数の和:4933

約数の個数: 16

約数和(自身を含む): 32693760

約数和(自身を除く): 12822502

約数列:

[1, 2, 11, 22, 191, 382, 2101, 4202, 4729, 9458, 52019, 104038, 903239, 1806478, 9935629, 19871258]

約数ペア:

[(1, 19871258), (2, 9935629), (11, 1806478), (22, 903239), (191, 104038), (382, 52019), (2101, 9458), (4202, 4729)]