21702256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71389}}^1$

素因数の和:71416

約数の個数: 20

約数和(自身を含む): 44261800

約数和(自身を除く): 22559544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71389, 142778, 285556, 571112, 1142224, 1356391, 2712782, 5425564, 10851128, 21702256]

約数ペア:

[(1, 21702256), (2, 10851128), (4, 5425564), (8, 2712782), (16, 1356391), (19, 1142224), (38, 571112), (76, 285556), (152, 142778), (304, 71389)]