81330991

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{853}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 95183424

約数和(自身を除く): 13852433

約数列:

[1, 7, 53, 257, 371, 853, 1799, 5971, 13621, 45209, 95347, 219221, 316463, 1534547, 11618713, 81330991]

約数ペア:

[(1, 81330991), (7, 11618713), (53, 1534547), (257, 316463), (371, 219221), (853, 95347), (1799, 45209), (5971, 13621)]