20644496

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{12527}}^1$

素因数の和:12638

約数の個数: 20

約数和(自身を含む): 40390272

約数和(自身を除く): 19745776

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 12527, 25054, 50108, 100216, 200432, 1290281, 2580562, 5161124, 10322248, 20644496]

約数ペア:

[(1, 20644496), (2, 10322248), (4, 5161124), (8, 2580562), (16, 1290281), (103, 200432), (206, 100216), (412, 50108), (824, 25054), (1648, 12527)]