201571965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{639911}}^1$

素因数の和:639929

約数の個数: 24

約数和(自身を含む): 399305088

約数和(自身を除く): 197733123

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 639911, 1919733, 3199555, 4479377, 5759199, 9598665, 13438131, 22396885, 28795995, 40314393, 67190655, 201571965]

約数ペア:

[(1, 201571965), (3, 67190655), (5, 40314393), (7, 28795995), (9, 22396885), (15, 13438131), (21, 9598665), (35, 5759199), (45, 4479377), (63, 3199555), (105, 1919733), (315, 639911)]