21513834

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{17839}}^1$

素因数の和:17914

約数の個数: 24

約数和(自身を含む): 47311680

約数和(自身を除く): 25797846

約数列:

[1, 2, 3, 6, 9, 18, 67, 134, 201, 402, 603, 1206, 17839, 35678, 53517, 107034, 160551, 321102, 1195213, 2390426, 3585639, 7171278, 10756917, 21513834]

約数ペア:

[(1, 21513834), (2, 10756917), (3, 7171278), (6, 3585639), (9, 2390426), (18, 1195213), (67, 321102), (134, 160551), (201, 107034), (402, 53517), (603, 35678), (1206, 17839)]