28354557

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{937}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 47545344

約数和(自身を除く): 19190787

約数列:

[1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 917, 937, 1441, 2751, 2811, 4323, 6559, 10087, 10307, 19677, 30261, 30921, 72149, 122747, 216447, 368241, 859229, 1350217, 2577687, 4050651, 9451519, 28354557]

約数ペア:

[(1, 28354557), (3, 9451519), (7, 4050651), (11, 2577687), (21, 1350217), (33, 859229), (77, 368241), (131, 216447), (231, 122747), (393, 72149), (917, 30921), (937, 30261), (1441, 19677), (2751, 10307), (2811, 10087), (4323, 6559)]