31587309

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15881}}^1$

素因数の和:15917

約数の個数: 24

約数和(自身を含む): 52029432

約数和(自身を除く): 20442123

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 15881, 47643, 142929, 206453, 269977, 619359, 809931, 1858077, 2429793, 3509701, 10529103, 31587309]

約数ペア:

[(1, 31587309), (3, 10529103), (9, 3509701), (13, 2429793), (17, 1858077), (39, 809931), (51, 619359), (117, 269977), (153, 206453), (221, 142929), (663, 47643), (1989, 15881)]