18770781

素因数分解:

$3^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 6731619

約数列:

[1, 3, 109, 137, 327, 411, 419, 1257, 14933, 44799, 45671, 57403, 137013, 172209, 6256927, 18770781]

約数ペア:

[(1, 18770781), (3, 6256927), (109, 172209), (137, 137013), (327, 57403), (411, 45671), (419, 44799), (1257, 14933)]