218790639

素因数分解:

$3^5\times {\mathrm{691}}^1\times {\mathrm{1303}}^1$

素因数の和:2009

約数の個数: 24

約数和(自身を含む): 328461952

約数和(自身を除く): 109671313

約数列:

[1, 3, 9, 27, 81, 243, 691, 1303, 2073, 3909, 6219, 11727, 18657, 35181, 55971, 105543, 167913, 316629, 900373, 2701119, 8103357, 24310071, 72930213, 218790639]

約数ペア:

[(1, 218790639), (3, 72930213), (9, 24310071), (27, 8103357), (81, 2701119), (243, 900373), (691, 316629), (1303, 167913), (2073, 105543), (3909, 55971), (6219, 35181), (11727, 18657)]