18774693

素因数分解:

$3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{617}}^1$

素因数の和:663

約数の個数: 48

約数和(自身を含む): 33816960

約数和(自身を除く): 15042267

約数列:

[1, 3, 7, 9, 21, 23, 27, 49, 63, 69, 147, 161, 189, 207, 441, 483, 617, 621, 1127, 1323, 1449, 1851, 3381, 4319, 4347, 5553, 10143, 12957, 14191, 16659, 30233, 30429, 38871, 42573, 90699, 99337, 116613, 127719, 272097, 298011, 383157, 695359, 816291, 894033, 2086077, 2682099, 6258231, 18774693]

約数ペア:

[(1, 18774693), (3, 6258231), (7, 2682099), (9, 2086077), (21, 894033), (23, 816291), (27, 695359), (49, 383157), (63, 298011), (69, 272097), (147, 127719), (161, 116613), (189, 99337), (207, 90699), (441, 42573), (483, 38871), (617, 30429), (621, 30233), (1127, 16659), (1323, 14191), (1449, 12957), (1851, 10143), (3381, 5553), (4319, 4347)]