18445455

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 64

約数和(自身を含む): 38016000

約数和(自身を除く): 19570545

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 131, 135, 149, 189, 315, 393, 447, 655, 745, 917, 945, 1043, 1179, 1341, 1965, 2235, 2751, 3129, 3537, 4023, 4585, 5215, 5895, 6705, 8253, 9387, 13755, 15645, 17685, 19519, 20115, 24759, 28161, 41265, 46935, 58557, 97595, 123795, 136633, 140805, 175671, 292785, 409899, 527013, 683165, 878355, 1229697, 2049495, 2635065, 3689091, 6148485, 18445455]

約数ペア:

[(1, 18445455), (3, 6148485), (5, 3689091), (7, 2635065), (9, 2049495), (15, 1229697), (21, 878355), (27, 683165), (35, 527013), (45, 409899), (63, 292785), (105, 175671), (131, 140805), (135, 136633), (149, 123795), (189, 97595), (315, 58557), (393, 46935), (447, 41265), (655, 28161), (745, 24759), (917, 20115), (945, 19519), (1043, 17685), (1179, 15645), (1341, 13755), (1965, 9387), (2235, 8253), (2751, 6705), (3129, 5895), (3537, 5215), (4023, 4585)]