81812354

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{443}}^1\times {\mathrm{7103}}^1$

素因数の和:7561

約数の個数: 16

約数和(自身を含む): 132475392

約数和(自身を除く): 50663038

約数列:

[1, 2, 13, 26, 443, 886, 5759, 7103, 11518, 14206, 92339, 184678, 3146629, 6293258, 40906177, 81812354]

約数ペア:

[(1, 81812354), (2, 40906177), (13, 6293258), (26, 3146629), (443, 184678), (886, 92339), (5759, 14206), (7103, 11518)]