16218765

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 31518720

約数和(自身を除く): 15299955

約数列:

[1, 3, 5, 9, 15, 17, 27, 37, 45, 51, 85, 111, 135, 153, 185, 191, 255, 333, 459, 555, 573, 629, 765, 955, 999, 1665, 1719, 1887, 2295, 2865, 3145, 3247, 4995, 5157, 5661, 7067, 8595, 9435, 9741, 16235, 16983, 21201, 25785, 28305, 29223, 35335, 48705, 63603, 84915, 87669, 106005, 120139, 146115, 190809, 318015, 360417, 438345, 600695, 954045, 1081251, 1802085, 3243753, 5406255, 16218765]

約数ペア:

[(1, 16218765), (3, 5406255), (5, 3243753), (9, 1802085), (15, 1081251), (17, 954045), (27, 600695), (37, 438345), (45, 360417), (51, 318015), (85, 190809), (111, 146115), (135, 120139), (153, 106005), (185, 87669), (191, 84915), (255, 63603), (333, 48705), (459, 35335), (555, 29223), (573, 28305), (629, 25785), (765, 21201), (955, 16983), (999, 16235), (1665, 9741), (1719, 9435), (1887, 8595), (2295, 7067), (2865, 5661), (3145, 5157), (3247, 4995)]