20171805658

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27938789}}^1$

素因数の和:27938829

約数の個数: 12

約数和(自身を含む): 31934036970

約数和(自身を除く): 11762231312

約数列:

[1, 2, 19, 38, 361, 722, 27938789, 55877578, 530836991, 1061673982, 10085902829, 20171805658]

約数ペア:

[(1, 20171805658), (2, 10085902829), (19, 1061673982), (38, 530836991), (361, 55877578), (722, 27938789)]