21995078

素因数分解:

$2^1\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{1399}}^1$

素因数の和:2531

約数の個数: 16

約数和(自身を含む): 37766400

約数和(自身を除く): 15771322

約数列:

[1, 2, 7, 14, 1123, 1399, 2246, 2798, 7861, 9793, 15722, 19586, 1571077, 3142154, 10997539, 21995078]

約数ペア:

[(1, 21995078), (2, 10997539), (7, 3142154), (14, 1571077), (1123, 19586), (1399, 15722), (2246, 9793), (2798, 7861)]