21000453584

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119320759}}^1$

素因数の和:119320778

約数の個数: 20

約数和(自身を含む): 44387322720

約数和(自身を除く): 23386869136

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119320759, 238641518, 477283036, 954566072, 1312528349, 1909132144, 2625056698, 5250113396, 10500226792, 21000453584]

約数ペア:

[(1, 21000453584), (2, 10500226792), (4, 5250113396), (8, 2625056698), (11, 1909132144), (16, 1312528349), (22, 954566072), (44, 477283036), (88, 238641518), (176, 119320759)]