21289016

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{13109}}^1$

素因数の和:13151

約数の個数: 32

約数和(自身を含む): 47196000

約数和(自身を除く): 25906984

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 406, 812, 1624, 13109, 26218, 52436, 91763, 104872, 183526, 367052, 380161, 734104, 760322, 1520644, 2661127, 3041288, 5322254, 10644508, 21289016]

約数ペア:

[(1, 21289016), (2, 10644508), (4, 5322254), (7, 3041288), (8, 2661127), (14, 1520644), (28, 760322), (29, 734104), (56, 380161), (58, 367052), (116, 183526), (203, 104872), (232, 91763), (406, 52436), (812, 26218), (1624, 13109)]