19665778864

素因数分解:

$2^4\times {\mathrm{911}}^1\times {\mathrm{1349189}}^1$

素因数の和:1350108

約数の個数: 20

約数和(自身を含む): 38144299680

約数和(自身を除く): 18478520816

約数列:

[1, 2, 4, 8, 16, 911, 1822, 3644, 7288, 14576, 1349189, 2698378, 5396756, 10793512, 21587024, 1229111179, 2458222358, 4916444716, 9832889432, 19665778864]

約数ペア:

[(1, 19665778864), (2, 9832889432), (4, 4916444716), (8, 2458222358), (16, 1229111179), (911, 21587024), (1822, 10793512), (3644, 5396756), (7288, 2698378), (14576, 1349189)]