21297861

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{6277}}^1$

素因数の和:6325

約数の個数: 24

約数和(自身を含む): 34277880

約数和(自身を除く): 12980019

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 6277, 18831, 56493, 81601, 182033, 244803, 546099, 734409, 1638297, 2366429, 7099287, 21297861]

約数ペア:

[(1, 21297861), (3, 7099287), (9, 2366429), (13, 1638297), (29, 734409), (39, 546099), (87, 244803), (117, 182033), (261, 81601), (377, 56493), (1131, 18831), (3393, 6277)]