19742151

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2707}}^1$

素因数の和:2751

約数の個数: 32

約数和(自身を含む): 32755968

約数和(自身を除く): 13013817

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 2707, 7293, 8121, 29777, 35191, 46019, 89331, 105573, 138057, 387101, 506209, 598247, 1161303, 1518627, 1794741, 6580717, 19742151]

約数ペア:

[(1, 19742151), (3, 6580717), (11, 1794741), (13, 1518627), (17, 1161303), (33, 598247), (39, 506209), (51, 387101), (143, 138057), (187, 105573), (221, 89331), (429, 46019), (561, 35191), (663, 29777), (2431, 8121), (2707, 7293)]