1261891918

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3918919}}^1$

素因数の和:3918951

約数の個数: 16

約数和(自身を含む): 2257297920

約数和(自身を除く): 995406002

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 3918919, 7837838, 27432433, 54864866, 90135137, 180270274, 630945959, 1261891918]

約数ペア:

[(1, 1261891918), (2, 630945959), (7, 180270274), (14, 90135137), (23, 54864866), (46, 27432433), (161, 7837838), (322, 3918919)]