21288184

素因数分解:

$2^3\times {\mathrm{41}}^2\times {\mathrm{1583}}^1$

素因数の和:1671

約数の個数: 24

約数和(自身を含む): 40938480

約数和(自身を除く): 19650296

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1583, 1681, 3166, 3362, 6332, 6724, 12664, 13448, 64903, 129806, 259612, 519224, 2661023, 5322046, 10644092, 21288184]

約数ペア:

[(1, 21288184), (2, 10644092), (4, 5322046), (8, 2661023), (41, 519224), (82, 259612), (164, 129806), (328, 64903), (1583, 13448), (1681, 12664), (3166, 6724), (3362, 6332)]