21125236

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2153}}^1$

素因数の和:2391

約数の個数: 24

約数和(自身を含む): 40529664

約数和(自身を除く): 19404428

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2153, 2453, 4306, 4906, 8612, 9812, 23683, 47366, 94732, 480119, 960238, 1920476, 5281309, 10562618, 21125236]

約数ペア:

[(1, 21125236), (2, 10562618), (4, 5281309), (11, 1920476), (22, 960238), (44, 480119), (223, 94732), (446, 47366), (892, 23683), (2153, 9812), (2453, 8612), (4306, 4906)]