261376269

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{7207}}^1$

素因数の和:7385

約数の個数: 32

約数和(自身を含む): 437323776

約数和(自身を除く): 175947507

約数列:

[1, 3, 7, 11, 21, 33, 77, 157, 231, 471, 1099, 1727, 3297, 5181, 7207, 12089, 21621, 36267, 50449, 79277, 151347, 237831, 554939, 1131499, 1664817, 3394497, 7920493, 12446489, 23761479, 37339467, 87125423, 261376269]

約数ペア:

[(1, 261376269), (3, 87125423), (7, 37339467), (11, 23761479), (21, 12446489), (33, 7920493), (77, 3394497), (157, 1664817), (231, 1131499), (471, 554939), (1099, 237831), (1727, 151347), (3297, 79277), (5181, 50449), (7207, 36267), (12089, 21621)]