81521454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1940987}}^1$

素因数の和:1940999

約数の個数: 16

約数和(自身を含む): 186334848

約数和(自身を除く): 104813394

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1940987, 3881974, 5822961, 11645922, 13586909, 27173818, 40760727, 81521454]

約数ペア:

[(1, 81521454), (2, 40760727), (3, 27173818), (6, 13586909), (7, 11645922), (14, 5822961), (21, 3881974), (42, 1940987)]