21513244

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 42134400

約数和(自身を除く): 20621156

約数列:

[1, 2, 4, 19, 29, 38, 43, 58, 76, 86, 116, 172, 227, 454, 551, 817, 908, 1102, 1247, 1634, 2204, 2494, 3268, 4313, 4988, 6583, 8626, 9761, 13166, 17252, 19522, 23693, 26332, 39044, 47386, 94772, 125077, 185459, 250154, 283069, 370918, 500308, 566138, 741836, 1132276, 5378311, 10756622, 21513244]

約数ペア:

[(1, 21513244), (2, 10756622), (4, 5378311), (19, 1132276), (29, 741836), (38, 566138), (43, 500308), (58, 370918), (76, 283069), (86, 250154), (116, 185459), (172, 125077), (227, 94772), (454, 47386), (551, 39044), (817, 26332), (908, 23693), (1102, 19522), (1247, 17252), (1634, 13166), (2204, 9761), (2494, 8626), (3268, 6583), (4313, 4988)]