81242819

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{271}}^1\times {\mathrm{379}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 94264320

約数和(自身を除く): 13021501

約数列:

[1, 7, 113, 271, 379, 791, 1897, 2653, 30623, 42827, 102709, 214361, 299789, 718963, 11606117, 81242819]

約数ペア:

[(1, 81242819), (7, 11606117), (113, 718963), (271, 299789), (379, 214361), (791, 102709), (1897, 42827), (2653, 30623)]