21398176

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15551}}^1$

素因数の和:15604

約数の個数: 24

約数和(自身を含む): 43110144

約数和(自身を除く): 21711968

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15551, 31102, 62204, 124408, 248816, 497632, 668693, 1337386, 2674772, 5349544, 10699088, 21398176]

約数ペア:

[(1, 21398176), (2, 10699088), (4, 5349544), (8, 2674772), (16, 1337386), (32, 668693), (43, 497632), (86, 248816), (172, 124408), (344, 62204), (688, 31102), (1376, 15551)]