21571370

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{337}}^1$

素因数の和:554

約数の個数: 32

約数和(自身を含む): 40227408

約数和(自身を除く): 18656038

約数列:

[1, 2, 5, 10, 37, 74, 173, 185, 337, 346, 370, 674, 865, 1685, 1730, 3370, 6401, 12469, 12802, 24938, 32005, 58301, 62345, 64010, 116602, 124690, 291505, 583010, 2157137, 4314274, 10785685, 21571370]

約数ペア:

[(1, 21571370), (2, 10785685), (5, 4314274), (10, 2157137), (37, 583010), (74, 291505), (173, 124690), (185, 116602), (337, 64010), (346, 62345), (370, 58301), (674, 32005), (865, 24938), (1685, 12802), (1730, 12469), (3370, 6401)]