205979781

素因数分解:

$3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{17737}}^1$

素因数の和:17833

約数の個数: 24

約数和(自身を含む): 323541120

約数和(自身を除く): 117561339

約数列:

[1, 3, 7, 21, 49, 79, 147, 237, 553, 1659, 3871, 11613, 17737, 53211, 124159, 372477, 869113, 1401223, 2607339, 4203669, 9808561, 29425683, 68659927, 205979781]

約数ペア:

[(1, 205979781), (3, 68659927), (7, 29425683), (21, 9808561), (49, 4203669), (79, 2607339), (147, 1401223), (237, 869113), (553, 372477), (1659, 124159), (3871, 53211), (11613, 17737)]