21433311

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 35324640

約数和(自身を除く): 13891329

約数列:

[1, 3, 9, 17, 19, 51, 57, 73, 101, 153, 171, 219, 303, 323, 657, 909, 969, 1241, 1387, 1717, 1919, 2907, 3723, 4161, 5151, 5757, 7373, 11169, 12483, 15453, 17271, 22119, 23579, 32623, 66357, 70737, 97869, 125341, 140087, 212211, 293607, 376023, 420261, 1128069, 1260783, 2381479, 7144437, 21433311]

約数ペア:

[(1, 21433311), (3, 7144437), (9, 2381479), (17, 1260783), (19, 1128069), (51, 420261), (57, 376023), (73, 293607), (101, 212211), (153, 140087), (171, 125341), (219, 97869), (303, 70737), (323, 66357), (657, 32623), (909, 23579), (969, 22119), (1241, 17271), (1387, 15453), (1717, 12483), (1919, 11169), (2907, 7373), (3723, 5757), (4161, 5151)]