21610904

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1069}}^1$

素因数の和:1120

約数の個数: 48

約数和(自身を含む): 48920400

約数和(自身を除く): 27309496

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 361, 532, 722, 1064, 1069, 1444, 2138, 2527, 2888, 4276, 5054, 7483, 8552, 10108, 14966, 20216, 20311, 29932, 40622, 59864, 81244, 142177, 162488, 284354, 385909, 568708, 771818, 1137416, 1543636, 2701363, 3087272, 5402726, 10805452, 21610904]

約数ペア:

[(1, 21610904), (2, 10805452), (4, 5402726), (7, 3087272), (8, 2701363), (14, 1543636), (19, 1137416), (28, 771818), (38, 568708), (56, 385909), (76, 284354), (133, 162488), (152, 142177), (266, 81244), (361, 59864), (532, 40622), (722, 29932), (1064, 20311), (1069, 20216), (1444, 14966), (2138, 10108), (2527, 8552), (2888, 7483), (4276, 5054)]