21254288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{120763}}^1$

素因数の和:120782

約数の個数: 20

約数和(自身を含む): 44924208

約数和(自身を除く): 23669920

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 120763, 241526, 483052, 966104, 1328393, 1932208, 2656786, 5313572, 10627144, 21254288]

約数ペア:

[(1, 21254288), (2, 10627144), (4, 5313572), (8, 2656786), (11, 1932208), (16, 1328393), (22, 966104), (44, 483052), (88, 241526), (176, 120763)]