20263089

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{87719}}^1$

素因数の和:87740

約数の個数: 16

約数和(自身を含む): 33684480

約数和(自身を除く): 13421391

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 87719, 263157, 614033, 964909, 1842099, 2894727, 6754363, 20263089]

約数ペア:

[(1, 20263089), (3, 6754363), (7, 2894727), (11, 1842099), (21, 964909), (33, 614033), (77, 263157), (231, 87719)]