28806687

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2069}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 54250560

約数和(自身を除く): 25443873

約数列:

[1, 3, 7, 9, 13, 17, 21, 39, 51, 63, 91, 117, 119, 153, 221, 273, 357, 663, 819, 1071, 1547, 1989, 2069, 4641, 6207, 13923, 14483, 18621, 26897, 35173, 43449, 80691, 105519, 130347, 188279, 242073, 246211, 316557, 457249, 564837, 738633, 1371747, 1694511, 2215899, 3200743, 4115241, 9602229, 28806687]

約数ペア:

[(1, 28806687), (3, 9602229), (7, 4115241), (9, 3200743), (13, 2215899), (17, 1694511), (21, 1371747), (39, 738633), (51, 564837), (63, 457249), (91, 316557), (117, 246211), (119, 242073), (153, 188279), (221, 130347), (273, 105519), (357, 80691), (663, 43449), (819, 35173), (1071, 26897), (1547, 18621), (1989, 14483), (2069, 13923), (4641, 6207)]