20468637

素因数分解:

$3^2\times 7^1\times {\mathrm{569}}^1\times {\mathrm{571}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 33908160

約数和(自身を除く): 13439523

約数列:

[1, 3, 7, 9, 21, 63, 569, 571, 1707, 1713, 3983, 3997, 5121, 5139, 11949, 11991, 35847, 35973, 324899, 974697, 2274293, 2924091, 6822879, 20468637]

約数ペア:

[(1, 20468637), (3, 6822879), (7, 2924091), (9, 2274293), (21, 974697), (63, 324899), (569, 35973), (571, 35847), (1707, 11991), (1713, 11949), (3983, 5139), (3997, 5121)]