20395151

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1723}}^1$

素因数の和:1838

約数の個数: 16

約数和(自身を含む): 24825600

約数和(自身を除く): 4430449

約数列:

[1, 7, 19, 89, 133, 623, 1691, 1723, 11837, 12061, 32737, 153347, 229159, 1073429, 2913593, 20395151]

約数ペア:

[(1, 20395151), (7, 2913593), (19, 1073429), (89, 229159), (133, 153347), (623, 32737), (1691, 12061), (1723, 11837)]