20745156939

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{84179}}^1$

素因数の和:84355

約数の個数: 32

約数和(自身を含む): 30547238400

約数和(自身を除く): 9802081461

約数列:

[1, 3, 13, 39, 71, 89, 213, 267, 923, 1157, 2769, 3471, 6319, 18957, 82147, 84179, 246441, 252537, 1094327, 3282981, 5976709, 7491931, 17930127, 22475793, 77697217, 97395103, 233091651, 292185309, 531927101, 1595781303, 6915052313, 20745156939]

約数ペア:

[(1, 20745156939), (3, 6915052313), (13, 1595781303), (39, 531927101), (71, 292185309), (89, 233091651), (213, 97395103), (267, 77697217), (923, 22475793), (1157, 17930127), (2769, 7491931), (3471, 5976709), (6319, 3282981), (18957, 1094327), (82147, 252537), (84179, 246441)]