20987758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{3301}}^1$

素因数の和:3348

約数の個数: 24

約数和(自身を含む): 36493704

約数和(自身を除く): 15505946

約数列:

[1, 2, 11, 17, 22, 34, 187, 289, 374, 578, 3179, 3301, 6358, 6602, 36311, 56117, 72622, 112234, 617287, 953989, 1234574, 1907978, 10493879, 20987758]

約数ペア:

[(1, 20987758), (2, 10493879), (11, 1907978), (17, 1234574), (22, 953989), (34, 617287), (187, 112234), (289, 72622), (374, 56117), (578, 36311), (3179, 6602), (3301, 6358)]