11987171

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{419}}^1$

素因数の和:554

約数の個数: 16

約数和(自身を含む): 14165760

約数和(自身を除く): 2178589

約数列:

[1, 7, 61, 67, 419, 427, 469, 2933, 4087, 25559, 28073, 28609, 178913, 196511, 1712453, 11987171]

約数ペア:

[(1, 11987171), (7, 1712453), (61, 196511), (67, 178913), (419, 28609), (427, 28073), (469, 25559), (2933, 4087)]