21007492

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2141}}^1$

素因数の和:2379

約数の個数: 24

約数和(自身を含む): 40303872

約数和(自身を除く): 19296380

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2141, 2453, 4282, 4906, 8564, 9812, 23551, 47102, 94204, 477443, 954886, 1909772, 5251873, 10503746, 21007492]

約数ペア:

[(1, 21007492), (2, 10503746), (4, 5251873), (11, 1909772), (22, 954886), (44, 477443), (223, 94204), (446, 47102), (892, 23551), (2141, 9812), (2453, 8564), (4282, 4906)]