21457016

素因数分解:

$2^3\times 7^1\times {\mathrm{619}}^2$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 46053720

約数和(自身を除く): 24596704

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 619, 1238, 2476, 4333, 4952, 8666, 17332, 34664, 383161, 766322, 1532644, 2682127, 3065288, 5364254, 10728508, 21457016]

約数ペア:

[(1, 21457016), (2, 10728508), (4, 5364254), (7, 3065288), (8, 2682127), (14, 1532644), (28, 766322), (56, 383161), (619, 34664), (1238, 17332), (2476, 8666), (4333, 4952)]