21821728

素因数分解:

$2^5\times {\mathrm{19}}^2\times {\mathrm{1889}}^1$

素因数の和:1937

約数の個数: 36

約数和(自身を含む): 45365670

約数和(自身を除く): 23543942

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 361, 608, 722, 1444, 1889, 2888, 3778, 5776, 7556, 11552, 15112, 30224, 35891, 60448, 71782, 143564, 287128, 574256, 681929, 1148512, 1363858, 2727716, 5455432, 10910864, 21821728]

約数ペア:

[(1, 21821728), (2, 10910864), (4, 5455432), (8, 2727716), (16, 1363858), (19, 1148512), (32, 681929), (38, 574256), (76, 287128), (152, 143564), (304, 71782), (361, 60448), (608, 35891), (722, 30224), (1444, 15112), (1889, 11552), (2888, 7556), (3778, 5776)]