21606040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28429}}^1$

素因数の和:28459

約数の個数: 32

約数和(自身を含む): 51174000

約数和(自身を除く): 29567960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28429, 56858, 113716, 142145, 227432, 284290, 540151, 568580, 1080302, 1137160, 2160604, 2700755, 4321208, 5401510, 10803020, 21606040]

約数ペア:

[(1, 21606040), (2, 10803020), (4, 5401510), (5, 4321208), (8, 2700755), (10, 2160604), (19, 1137160), (20, 1080302), (38, 568580), (40, 540151), (76, 284290), (95, 227432), (152, 142145), (190, 113716), (380, 56858), (760, 28429)]