21681232

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{4021}}^1$

素因数の和:4366

約数の個数: 20

約数和(自身を含む): 42142516

約数和(自身を除く): 20461284

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 4021, 5392, 8042, 16084, 32168, 64336, 1355077, 2710154, 5420308, 10840616, 21681232]

約数ペア:

[(1, 21681232), (2, 10840616), (4, 5420308), (8, 2710154), (16, 1355077), (337, 64336), (674, 32168), (1348, 16084), (2696, 8042), (4021, 5392)]