21368872

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^2\times {\mathrm{227}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 47141280

約数和(自身を除く): 25772408

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 164, 227, 287, 328, 454, 574, 908, 1148, 1589, 1681, 1816, 2296, 3178, 3362, 6356, 6724, 9307, 11767, 12712, 13448, 18614, 23534, 37228, 47068, 65149, 74456, 94136, 130298, 260596, 381587, 521192, 763174, 1526348, 2671109, 3052696, 5342218, 10684436, 21368872]

約数ペア:

[(1, 21368872), (2, 10684436), (4, 5342218), (7, 3052696), (8, 2671109), (14, 1526348), (28, 763174), (41, 521192), (56, 381587), (82, 260596), (164, 130298), (227, 94136), (287, 74456), (328, 65149), (454, 47068), (574, 37228), (908, 23534), (1148, 18614), (1589, 13448), (1681, 12712), (1816, 11767), (2296, 9307), (3178, 6724), (3362, 6356)]