28389328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{161303}}^1$

素因数の和:161322

約数の個数: 20

約数和(自身を含む): 60005088

約数和(自身を除く): 31615760

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 161303, 322606, 645212, 1290424, 1774333, 2580848, 3548666, 7097332, 14194664, 28389328]

約数ペア:

[(1, 28389328), (2, 14194664), (4, 7097332), (8, 3548666), (11, 2580848), (16, 1774333), (22, 1290424), (44, 645212), (88, 322606), (176, 161303)]