21210508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20959}}^1$

素因数の和:20997

約数の個数: 24

約数和(自身を含む): 42255360

約数和(自身を除く): 21044852

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20959, 41918, 83836, 230549, 461098, 482057, 922196, 964114, 1928228, 5302627, 10605254, 21210508]

約数ペア:

[(1, 21210508), (2, 10605254), (4, 5302627), (11, 1928228), (22, 964114), (23, 922196), (44, 482057), (46, 461098), (92, 230549), (253, 83836), (506, 41918), (1012, 20959)]