21520862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{18457}}^1$

素因数の和:18523

約数の個数: 16

約数和(自身を含む): 35882352

約数和(自身を除く): 14361490

約数列:

[1, 2, 11, 22, 53, 106, 583, 1166, 18457, 36914, 203027, 406054, 978221, 1956442, 10760431, 21520862]

約数ペア:

[(1, 21520862), (2, 10760431), (11, 1956442), (22, 978221), (53, 406054), (106, 203027), (583, 36914), (1166, 18457)]