19172020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{136943}}^1$

素因数の和:136959

約数の個数: 24

約数和(自身を含む): 46013184

約数和(自身を除く): 26841164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 136943, 273886, 547772, 684715, 958601, 1369430, 1917202, 2738860, 3834404, 4793005, 9586010, 19172020]

約数ペア:

[(1, 19172020), (2, 9586010), (4, 4793005), (5, 3834404), (7, 2738860), (10, 1917202), (14, 1369430), (20, 958601), (28, 684715), (35, 547772), (70, 273886), (140, 136943)]