20743281

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10429}}^1$

素因数の和:10465

約数の個数: 24

約数和(自身を含む): 34168680

約数和(自身を除く): 13425399

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10429, 31287, 93861, 135577, 177293, 406731, 531879, 1220193, 1595637, 2304809, 6914427, 20743281]

約数ペア:

[(1, 20743281), (3, 6914427), (9, 2304809), (13, 1595637), (17, 1220193), (39, 531879), (51, 406731), (117, 177293), (153, 135577), (221, 93861), (663, 31287), (1989, 10429)]