15888971996

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{209065421}}^1$

素因数の和:209065444

約数の個数: 12

約数和(自身を含む): 29269159080

約数和(自身を除く): 13380187084

約数列:

[1, 2, 4, 19, 38, 76, 209065421, 418130842, 836261684, 3972242999, 7944485998, 15888971996]

約数ペア:

[(1, 15888971996), (2, 7944485998), (4, 3972242999), (19, 836261684), (38, 418130842), (76, 209065421)]