12642345

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2582

約数の個数: 32

約数和(自身を含む): 23091840

約数和(自身を除く): 10449495

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 2531, 4995, 7593, 12655, 22779, 37965, 68337, 93647, 113895, 280941, 341685, 468235, 842823, 1404705, 2528469, 4214115, 12642345]

約数ペア:

[(1, 12642345), (3, 4214115), (5, 2528469), (9, 1404705), (15, 842823), (27, 468235), (37, 341685), (45, 280941), (111, 113895), (135, 93647), (185, 68337), (333, 37965), (555, 22779), (999, 12655), (1665, 7593), (2531, 4995)]