21221662

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137803}}^1$

素因数の和:137823

約数の個数: 16

約数和(自身を含む): 39687552

約数和(自身を除く): 18465890

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137803, 275606, 964621, 1515833, 1929242, 3031666, 10610831, 21221662]

約数ペア:

[(1, 21221662), (2, 10610831), (7, 3031666), (11, 1929242), (14, 1515833), (22, 964621), (77, 275606), (154, 137803)]