201638115

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640121}}^1$

素因数の和:640139

約数の個数: 24

約数和(自身を含む): 399436128

約数和(自身を除く): 197798013

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640121, 1920363, 3200605, 4480847, 5761089, 9601815, 13442541, 22404235, 28805445, 40327623, 67212705, 201638115]

約数ペア:

[(1, 201638115), (3, 67212705), (5, 40327623), (7, 28805445), (9, 22404235), (15, 13442541), (21, 9601815), (35, 5761089), (45, 4480847), (63, 3200605), (105, 1920363), (315, 640121)]