205505559

素因数分解:

$3^3\times 7^2\times {\mathrm{155333}}^1$

素因数の和:155356

約数の個数: 24

約数和(自身を含む): 354161520

約数和(自身を除く): 148655961

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 155333, 465999, 1087331, 1397997, 3261993, 4193991, 7611317, 9785979, 22833951, 29357937, 68501853, 205505559]

約数ペア:

[(1, 205505559), (3, 68501853), (7, 29357937), (9, 22833951), (21, 9785979), (27, 7611317), (49, 4193991), (63, 3261993), (147, 1397997), (189, 1087331), (441, 465999), (1323, 155333)]