18516195

素因数分解:

$3^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{349}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 33541200

約数和(自身を除く): 15025005

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 131, 135, 349, 393, 405, 655, 1047, 1179, 1745, 1965, 3141, 3537, 5235, 5895, 9423, 10611, 15705, 17685, 28269, 45719, 47115, 53055, 137157, 141345, 228595, 411471, 685785, 1234413, 2057355, 3703239, 6172065, 18516195]

約数ペア:

[(1, 18516195), (3, 6172065), (5, 3703239), (9, 2057355), (15, 1234413), (27, 685785), (45, 411471), (81, 228595), (131, 141345), (135, 137157), (349, 53055), (393, 47115), (405, 45719), (655, 28269), (1047, 17685), (1179, 15705), (1745, 10611), (1965, 9423), (3141, 5895), (3537, 5235)]