21164792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{240509}}^1$

素因数の和:240526

約数の個数: 16

約数和(自身を含む): 43291800

約数和(自身を除く): 22127008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 240509, 481018, 962036, 1924072, 2645599, 5291198, 10582396, 21164792]

約数ペア:

[(1, 21164792), (2, 10582396), (4, 5291198), (8, 2645599), (11, 1924072), (22, 962036), (44, 481018), (88, 240509)]