20116881

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{619}}^1$

素因数の和:805

約数の個数: 24

約数和(自身を含む): 30563520

約数和(自身を除く): 10446639

約数列:

[1, 3, 9, 23, 69, 157, 207, 471, 619, 1413, 1857, 3611, 5571, 10833, 14237, 32499, 42711, 97183, 128133, 291549, 874647, 2235209, 6705627, 20116881]

約数ペア:

[(1, 20116881), (3, 6705627), (9, 2235209), (23, 874647), (69, 291549), (157, 128133), (207, 97183), (471, 42711), (619, 32499), (1413, 14237), (1857, 10833), (3611, 5571)]