20471995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{227}}^1\times {\mathrm{1061}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 26150688

約数和(自身を除く): 5678693

約数列:

[1, 5, 17, 85, 227, 1061, 1135, 3859, 5305, 18037, 19295, 90185, 240847, 1204235, 4094399, 20471995]

約数ペア:

[(1, 20471995), (5, 4094399), (17, 1204235), (85, 240847), (227, 90185), (1061, 19295), (1135, 18037), (3859, 5305)]