21705229278

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{704761}}^1$

素因数の和:704857

約数の個数: 48

約数和(自身を含む): 49474292400

約数和(自身を除く): 27769063122

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 59, 87, 118, 174, 177, 261, 354, 522, 531, 1062, 1711, 3422, 5133, 10266, 15399, 30798, 704761, 1409522, 2114283, 4228566, 6342849, 12685698, 20438069, 40876138, 41580899, 61314207, 83161798, 122628414, 124742697, 183942621, 249485394, 367885242, 374228091, 748456182, 1205846071, 2411692142, 3617538213, 7235076426, 10852614639, 21705229278]

約数ペア:

[(1, 21705229278), (2, 10852614639), (3, 7235076426), (6, 3617538213), (9, 2411692142), (18, 1205846071), (29, 748456182), (58, 374228091), (59, 367885242), (87, 249485394), (118, 183942621), (174, 124742697), (177, 122628414), (261, 83161798), (354, 61314207), (522, 41580899), (531, 40876138), (1062, 20438069), (1711, 12685698), (3422, 6342849), (5133, 4228566), (10266, 2114283), (15399, 1409522), (30798, 704761)]