81838141

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{4447}}^1$

素因数の和:4704

約数の個数: 16

約数和(自身を含む): 102481920

約数和(自身を除く): 20643779

約数列:

[1, 7, 11, 77, 239, 1673, 2629, 4447, 18403, 31129, 48917, 342419, 1062833, 7439831, 11691163, 81838141]

約数ペア:

[(1, 81838141), (7, 11691163), (11, 7439831), (77, 1062833), (239, 342419), (1673, 48917), (2629, 31129), (4447, 18403)]