19846905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5987}}^1$

素因数の和:6025

約数の個数: 32

約数和(自身を含む): 36215424

約数和(自身を除く): 16368519

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 5987, 17961, 29935, 77831, 89805, 101779, 233493, 305337, 389155, 508895, 1167465, 1323127, 1526685, 3969381, 6615635, 19846905]

約数ペア:

[(1, 19846905), (3, 6615635), (5, 3969381), (13, 1526685), (15, 1323127), (17, 1167465), (39, 508895), (51, 389155), (65, 305337), (85, 233493), (195, 101779), (221, 89805), (255, 77831), (663, 29935), (1105, 17961), (3315, 5987)]