20995723

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 24675840

約数和(自身を除く): 3680117

約数列:

[1, 7, 67, 89, 469, 503, 623, 3521, 5963, 33701, 41741, 44767, 235907, 313369, 2999389, 20995723]

約数ペア:

[(1, 20995723), (7, 2999389), (67, 313369), (89, 235907), (469, 44767), (503, 41741), (623, 33701), (3521, 5963)]