21738416

素因数分解:

$2^4\times 7^1\times {\mathrm{194093}}^1$

素因数の和:194108

約数の個数: 20

約数和(自身を含む): 48135312

約数和(自身を除く): 26396896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194093, 388186, 776372, 1358651, 1552744, 2717302, 3105488, 5434604, 10869208, 21738416]

約数ペア:

[(1, 21738416), (2, 10869208), (4, 5434604), (7, 3105488), (8, 2717302), (14, 1552744), (16, 1358651), (28, 776372), (56, 388186), (112, 194093)]