18137938

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{619}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 35622720

約数和(自身を除く): 17484782

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 619, 637, 1127, 1238, 1274, 2093, 2254, 4186, 4333, 8047, 8666, 14237, 14651, 16094, 28474, 29302, 30331, 56329, 60662, 99659, 112658, 185081, 199318, 370162, 394303, 697613, 788606, 1295567, 1395226, 2591134, 9068969, 18137938]

約数ペア:

[(1, 18137938), (2, 9068969), (7, 2591134), (13, 1395226), (14, 1295567), (23, 788606), (26, 697613), (46, 394303), (49, 370162), (91, 199318), (98, 185081), (161, 112658), (182, 99659), (299, 60662), (322, 56329), (598, 30331), (619, 29302), (637, 28474), (1127, 16094), (1238, 14651), (1274, 14237), (2093, 8666), (2254, 8047), (4186, 4333)]