21787799

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{631}}^1$

素因数の和:758

約数の個数: 16

約数和(自身を含む): 24693504

約数和(自身を除く): 2905705

約数列:

[1, 11, 43, 73, 473, 631, 803, 3139, 6941, 27133, 34529, 46063, 298463, 506693, 1980709, 21787799]

約数ペア:

[(1, 21787799), (11, 1980709), (43, 506693), (73, 298463), (473, 46063), (631, 34529), (803, 27133), (3139, 6941)]