81494497

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 99743616

約数和(自身を除く): 18249119

約数列:

[1, 7, 23, 49, 161, 167, 433, 1127, 1169, 3031, 3841, 8183, 9959, 21217, 26887, 69713, 72311, 188209, 487991, 506177, 1663153, 3543239, 11642071, 81494497]

約数ペア:

[(1, 81494497), (7, 11642071), (23, 3543239), (49, 1663153), (161, 506177), (167, 487991), (433, 188209), (1127, 72311), (1169, 69713), (3031, 26887), (3841, 21217), (8183, 9959)]