19957105

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^2\times {\mathrm{107}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 28009152

約数和(自身を除く): 8052047

約数列:

[1, 5, 7, 35, 73, 107, 365, 511, 535, 749, 2555, 3745, 5329, 7811, 26645, 37303, 39055, 54677, 186515, 273385, 570203, 2851015, 3991421, 19957105]

約数ペア:

[(1, 19957105), (5, 3991421), (7, 2851015), (35, 570203), (73, 273385), (107, 186515), (365, 54677), (511, 39055), (535, 37303), (749, 26645), (2555, 7811), (3745, 5329)]