20656808

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{23689}}^1$

素因数の和:23804

約数の個数: 16

約数和(自身を含む): 39088500

約数和(自身を除く): 18431692

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 23689, 47378, 94756, 189512, 2582101, 5164202, 10328404, 20656808]

約数ペア:

[(1, 20656808), (2, 10328404), (4, 5164202), (8, 2582101), (109, 189512), (218, 94756), (436, 47378), (872, 23689)]