21380348

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{2179}}^1$

素因数の和:2417

約数の個数: 24

約数和(自身を含む): 41018880

約数和(自身を除く): 19638532

約数列:

[1, 2, 4, 11, 22, 44, 223, 446, 892, 2179, 2453, 4358, 4906, 8716, 9812, 23969, 47938, 95876, 485917, 971834, 1943668, 5345087, 10690174, 21380348]

約数ペア:

[(1, 21380348), (2, 10690174), (4, 5345087), (11, 1943668), (22, 971834), (44, 485917), (223, 95876), (446, 47938), (892, 23969), (2179, 9812), (2453, 8716), (4358, 4906)]