21486892

素因数分解:

$2^2\times 7^3\times {\mathrm{15661}}^1$

素因数の和:15686

約数の個数: 24

約数和(自身を含む): 43853600

約数和(自身を除く): 22366708

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15661, 31322, 62644, 109627, 219254, 438508, 767389, 1534778, 3069556, 5371723, 10743446, 21486892]

約数ペア:

[(1, 21486892), (2, 10743446), (4, 5371723), (7, 3069556), (14, 1534778), (28, 767389), (49, 438508), (98, 219254), (196, 109627), (343, 62644), (686, 31322), (1372, 15661)]