21692991

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1123}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 29781504

約数和(自身を除く): 8088513

約数列:

[1, 3, 47, 137, 141, 411, 1123, 3369, 6439, 19317, 52781, 153851, 158343, 461553, 7230997, 21692991]

約数ペア:

[(1, 21692991), (3, 7230997), (47, 461553), (137, 158343), (141, 153851), (411, 52781), (1123, 19317), (3369, 6439)]