20181231007

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{7986241}}^1$

素因数の和:7986286

約数の個数: 12

約数和(自身を含む): 24342065616

約数和(自身を除く): 4160834609

約数列:

[1, 7, 19, 133, 361, 2527, 7986241, 55903687, 151738579, 1062170053, 2883033001, 20181231007]

約数ペア:

[(1, 20181231007), (7, 2883033001), (19, 1062170053), (133, 151738579), (361, 55903687), (2527, 7986241)]