212903999

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{25841}}^1$

素因数の和:25966

約数の個数: 16

約数和(自身を含む): 267929856

約数和(自身を除く): 55025857

約数列:

[1, 7, 11, 77, 107, 749, 1177, 8239, 25841, 180887, 284251, 1989757, 2764987, 19354909, 30414857, 212903999]

約数ペア:

[(1, 212903999), (7, 30414857), (11, 19354909), (77, 2764987), (107, 1989757), (749, 284251), (1177, 180887), (8239, 25841)]