18777993

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{16603}}^1$

素因数の和:16648

約数の個数: 16

約数和(自身を含む): 27894720

約数和(自身を除く): 9116727

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 16603, 49809, 215839, 481487, 647517, 1444461, 6259331, 18777993]

約数ペア:

[(1, 18777993), (3, 6259331), (13, 1444461), (29, 647517), (39, 481487), (87, 215839), (377, 49809), (1131, 16603)]