18680727

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 28224000

約数和(自身を除く): 9543273

約数列:

[1, 3, 13, 29, 39, 83, 87, 199, 249, 377, 597, 1079, 1131, 2407, 2587, 3237, 5771, 7221, 7761, 16517, 17313, 31291, 49551, 75023, 93873, 214721, 225069, 478993, 644163, 1436979, 6226909, 18680727]

約数ペア:

[(1, 18680727), (3, 6226909), (13, 1436979), (29, 644163), (39, 478993), (83, 225069), (87, 214721), (199, 93873), (249, 75023), (377, 49551), (597, 31291), (1079, 17313), (1131, 16517), (2407, 7761), (2587, 7221), (3237, 5771)]