21000337516

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{661}}^1\times {\mathrm{1307}}^1$

素因数の和:2134

約数の個数: 48

約数和(自身を含む): 37822337280

約数和(自身を除く): 16821999764

約数列:

[1, 2, 4, 59, 103, 118, 206, 236, 412, 661, 1307, 1322, 2614, 2644, 5228, 6077, 12154, 24308, 38999, 68083, 77113, 77998, 134621, 136166, 154226, 155996, 269242, 272332, 308452, 538484, 863927, 1727854, 3455708, 4016897, 7942639, 8033794, 15885278, 16067588, 31770556, 50971693, 88984481, 101943386, 177968962, 203886772, 355937924, 5250084379, 10500168758, 21000337516]

約数ペア:

[(1, 21000337516), (2, 10500168758), (4, 5250084379), (59, 355937924), (103, 203886772), (118, 177968962), (206, 101943386), (236, 88984481), (412, 50971693), (661, 31770556), (1307, 16067588), (1322, 15885278), (2614, 8033794), (2644, 7942639), (5228, 4016897), (6077, 3455708), (12154, 1727854), (24308, 863927), (38999, 538484), (68083, 308452), (77113, 272332), (77998, 269242), (134621, 155996), (136166, 154226)]