161990218

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{12953}}^1$

素因数の和:13018

約数の個数: 24

約数和(自身を含む): 270246348

約数和(自身を除く): 108256130

約数列:

[1, 2, 13, 26, 37, 74, 169, 338, 481, 962, 6253, 12506, 12953, 25906, 168389, 336778, 479261, 958522, 2189057, 4378114, 6230393, 12460786, 80995109, 161990218]

約数ペア:

[(1, 161990218), (2, 80995109), (13, 12460786), (26, 6230393), (37, 4378114), (74, 2189057), (169, 958522), (338, 479261), (481, 336778), (962, 168389), (6253, 25906), (12506, 12953)]