18864853

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 5266667

約数列:

[1, 7, 19, 23, 49, 133, 161, 437, 881, 931, 1127, 3059, 6167, 16739, 20263, 21413, 43169, 117173, 141841, 384997, 820211, 992887, 2694979, 18864853]

約数ペア:

[(1, 18864853), (7, 2694979), (19, 992887), (23, 820211), (49, 384997), (133, 141841), (161, 117173), (437, 43169), (881, 21413), (931, 20263), (1127, 16739), (3059, 6167)]