21368105

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{877}}^1$

素因数の和:1336

約数の個数: 16

約数和(自身を含む): 28067904

約数和(自身を除く): 6699799

約数列:

[1, 5, 11, 55, 443, 877, 2215, 4385, 4873, 9647, 24365, 48235, 388511, 1942555, 4273621, 21368105]

約数ペア:

[(1, 21368105), (5, 4273621), (11, 1942555), (55, 388511), (443, 48235), (877, 24365), (2215, 9647), (4385, 4873)]