81493281

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{821}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 121179240

約数和(自身を除く): 39685959

約数列:

[1, 3, 9, 41, 123, 269, 369, 807, 821, 2421, 2463, 7389, 11029, 33087, 33661, 99261, 100983, 220849, 302949, 662547, 1987641, 9054809, 27164427, 81493281]

約数ペア:

[(1, 81493281), (3, 27164427), (9, 9054809), (41, 1987641), (123, 662547), (269, 302949), (369, 220849), (807, 100983), (821, 99261), (2421, 33661), (2463, 33087), (7389, 11029)]