39881439

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20051}}^1$

素因数の和:20087

約数の個数: 24

約数和(自身を含む): 65690352

約数和(自身を除く): 25808913

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 20051, 60153, 180459, 260663, 340867, 781989, 1022601, 2345967, 3067803, 4431271, 13293813, 39881439]

約数ペア:

[(1, 39881439), (3, 13293813), (9, 4431271), (13, 3067803), (17, 2345967), (39, 1022601), (51, 781989), (117, 340867), (153, 260663), (221, 180459), (663, 60153), (1989, 20051)]