21350956

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{3491}}^1$

素因数の和:3645

約数の個数: 24

約数和(自身を含む): 41065920

約数和(自身を除く): 19714964

約数列:

[1, 2, 4, 11, 22, 44, 139, 278, 556, 1529, 3058, 3491, 6116, 6982, 13964, 38401, 76802, 153604, 485249, 970498, 1940996, 5337739, 10675478, 21350956]

約数ペア:

[(1, 21350956), (2, 10675478), (4, 5337739), (11, 1940996), (22, 970498), (44, 485249), (139, 153604), (278, 76802), (556, 38401), (1529, 13964), (3058, 6982), (3491, 6116)]