18707986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1973}}^1$

素因数の和:2417

約数の個数: 16

約数和(自身を含む): 30699648

約数和(自身を除く): 11991662

約数列:

[1, 2, 11, 22, 431, 862, 1973, 3946, 4741, 9482, 21703, 43406, 850363, 1700726, 9353993, 18707986]

約数ペア:

[(1, 18707986), (2, 9353993), (11, 1700726), (22, 850363), (431, 43406), (862, 21703), (1973, 9482), (3946, 4741)]