20892951

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 32928000

約数和(自身を除く): 12035049

約数列:

[1, 3, 9, 19, 27, 57, 139, 171, 293, 417, 513, 879, 1251, 2637, 2641, 3753, 5567, 7911, 7923, 16701, 23769, 40727, 50103, 71307, 122181, 150309, 366543, 773813, 1099629, 2321439, 6964317, 20892951]

約数ペア:

[(1, 20892951), (3, 6964317), (9, 2321439), (19, 1099629), (27, 773813), (57, 366543), (139, 150309), (171, 122181), (293, 71307), (417, 50103), (513, 40727), (879, 23769), (1251, 16701), (2637, 7923), (2641, 7911), (3753, 5567)]