19704368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64817}}^1$

素因数の和:64844

約数の個数: 20

約数和(自身を含む): 40187160

約数和(自身を除く): 20482792

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64817, 129634, 259268, 518536, 1037072, 1231523, 2463046, 4926092, 9852184, 19704368]

約数ペア:

[(1, 19704368), (2, 9852184), (4, 4926092), (8, 2463046), (16, 1231523), (19, 1037072), (38, 518536), (76, 259268), (152, 129634), (304, 64817)]