21533974

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139831}}^1$

素因数の和:139851

約数の個数: 16

約数和(自身を含む): 40271616

約数和(自身を除く): 18737642

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139831, 279662, 978817, 1538141, 1957634, 3076282, 10766987, 21533974]

約数ペア:

[(1, 21533974), (2, 10766987), (7, 3076282), (11, 1957634), (14, 1538141), (22, 978817), (77, 279662), (154, 139831)]