1388996854

素因数分解:

$2^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{255049}}^1$

素因数の和:255447

約数の個数: 16

約数和(自身を含む): 2387268000

約数和(自身を除く): 998271146

約数列:

[1, 2, 7, 14, 389, 778, 2723, 5446, 255049, 510098, 1785343, 3570686, 99214061, 198428122, 694498427, 1388996854]

約数ペア:

[(1, 1388996854), (2, 694498427), (7, 198428122), (14, 99214061), (389, 3570686), (778, 1785343), (2723, 510098), (5446, 255049)]