20791017

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10453}}^1$

素因数の和:10489

約数の個数: 24

約数和(自身を含む): 34247304

約数和(自身を除く): 13456287

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10453, 31359, 94077, 135889, 177701, 407667, 533103, 1223001, 1599309, 2310113, 6930339, 20791017]

約数ペア:

[(1, 20791017), (3, 6930339), (9, 2310113), (13, 1599309), (17, 1223001), (39, 533103), (51, 407667), (117, 177701), (153, 135889), (221, 94077), (663, 31359), (1989, 10453)]