399996315

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{522871}}^1$

素因数の和:522899

約数の個数: 24

約数和(自身を含む): 734112288

約数和(自身を除く): 334115973

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 522871, 1568613, 2614355, 4705839, 7843065, 8888807, 23529195, 26666421, 44444035, 79999263, 133332105, 399996315]

約数ペア:

[(1, 399996315), (3, 133332105), (5, 79999263), (9, 44444035), (15, 26666421), (17, 23529195), (45, 8888807), (51, 7843065), (85, 4705839), (153, 2614355), (255, 1568613), (765, 522871)]