20486487

素因数分解:

$3^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{5639}}^1$

素因数の和:5822

約数の個数: 16

約数和(自身を含む): 31403520

約数和(自身を除く): 10917033

約数列:

[1, 3, 7, 21, 173, 519, 1211, 3633, 5639, 16917, 39473, 118419, 975547, 2926641, 6828829, 20486487]

約数ペア:

[(1, 20486487), (3, 6828829), (7, 2926641), (21, 975547), (173, 118419), (519, 39473), (1211, 16917), (3633, 5639)]