21363896

素因数分解:

$2^3\times {\mathrm{257}}^1\times {\mathrm{10391}}^1$

素因数の和:10654

約数の個数: 16

約数和(自身を含む): 40217040

約数和(自身を除く): 18853144

約数列:

[1, 2, 4, 8, 257, 514, 1028, 2056, 10391, 20782, 41564, 83128, 2670487, 5340974, 10681948, 21363896]

約数ペア:

[(1, 21363896), (2, 10681948), (4, 5340974), (8, 2670487), (257, 83128), (514, 41564), (1028, 20782), (2056, 10391)]