19684304

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{887}}^1$

素因数の和:987

約数の個数: 40

約数和(自身を含む): 40741440

約数和(自身を除く): 21057136

約数列:

[1, 2, 4, 8, 16, 19, 38, 73, 76, 146, 152, 292, 304, 584, 887, 1168, 1387, 1774, 2774, 3548, 5548, 7096, 11096, 14192, 16853, 22192, 33706, 64751, 67412, 129502, 134824, 259004, 269648, 518008, 1036016, 1230269, 2460538, 4921076, 9842152, 19684304]

約数ペア:

[(1, 19684304), (2, 9842152), (4, 4921076), (8, 2460538), (16, 1230269), (19, 1036016), (38, 518008), (73, 269648), (76, 259004), (146, 134824), (152, 129502), (292, 67412), (304, 64751), (584, 33706), (887, 22192), (1168, 16853), (1387, 14192), (1774, 11096), (2774, 7096), (3548, 5548)]