20712656

素因数分解:

$2^4\times {\mathrm{331}}^1\times {\mathrm{3911}}^1$

素因数の和:4250

約数の個数: 20

約数和(自身を含む): 40262304

約数和(自身を除く): 19549648

約数列:

[1, 2, 4, 8, 16, 331, 662, 1324, 2648, 3911, 5296, 7822, 15644, 31288, 62576, 1294541, 2589082, 5178164, 10356328, 20712656]

約数ペア:

[(1, 20712656), (2, 10356328), (4, 5178164), (8, 2589082), (16, 1294541), (331, 62576), (662, 31288), (1324, 15644), (2648, 7822), (3911, 5296)]