21837808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{31741}}^1$

素因数の和:31792

約数の個数: 20

約数和(自身を含む): 43296088

約数和(自身を除く): 21458280

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 31741, 63482, 126964, 253928, 507856, 1364863, 2729726, 5459452, 10918904, 21837808]

約数ペア:

[(1, 21837808), (2, 10918904), (4, 5459452), (8, 2729726), (16, 1364863), (43, 507856), (86, 253928), (172, 126964), (344, 63482), (688, 31741)]