18979667

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1\times {\mathrm{457}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 23083200

約数和(自身を除く): 4103533

約数列:

[1, 7, 17, 119, 349, 457, 2443, 3199, 5933, 7769, 41531, 54383, 159493, 1116451, 2711381, 18979667]

約数ペア:

[(1, 18979667), (7, 2711381), (17, 1116451), (119, 159493), (349, 54383), (457, 41531), (2443, 7769), (3199, 5933)]