21071152

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69313}}^1$

素因数の和:69340

約数の個数: 20

約数和(自身を含む): 42974680

約数和(自身を除く): 21903528

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69313, 138626, 277252, 554504, 1109008, 1316947, 2633894, 5267788, 10535576, 21071152]

約数ペア:

[(1, 21071152), (2, 10535576), (4, 5267788), (8, 2633894), (16, 1316947), (19, 1109008), (38, 554504), (76, 277252), (152, 138626), (304, 69313)]