208567541

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1699}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 274176000

約数和(自身を除く): 65608459

約数列:

[1, 7, 13, 19, 71, 91, 133, 247, 497, 923, 1349, 1699, 1729, 6461, 9443, 11893, 17537, 22087, 32281, 120629, 122759, 154609, 225967, 419653, 844403, 1568177, 2291951, 2937571, 10977239, 16043657, 29795363, 208567541]

約数ペア:

[(1, 208567541), (7, 29795363), (13, 16043657), (19, 10977239), (71, 2937571), (91, 2291951), (133, 1568177), (247, 844403), (497, 419653), (923, 225967), (1349, 154609), (1699, 122759), (1729, 120629), (6461, 32281), (9443, 22087), (11893, 17537)]