21107024

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69431}}^1$

素因数の和:69458

約数の個数: 20

約数和(自身を含む): 43047840

約数和(自身を除く): 21940816

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69431, 138862, 277724, 555448, 1110896, 1319189, 2638378, 5276756, 10553512, 21107024]

約数ペア:

[(1, 21107024), (2, 10553512), (4, 5276756), (8, 2638378), (16, 1319189), (19, 1110896), (38, 555448), (76, 277724), (152, 138862), (304, 69431)]