21147434

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137321}}^1$

素因数の和:137341

約数の個数: 16

約数和(自身を含む): 39548736

約数和(自身を除く): 18401302

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 137321, 274642, 961247, 1510531, 1922494, 3021062, 10573717, 21147434]

約数ペア:

[(1, 21147434), (2, 10573717), (7, 3021062), (11, 1922494), (14, 1510531), (22, 961247), (77, 274642), (154, 137321)]