19792984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{661}}^1$

素因数の和:883

約数の個数: 32

約数和(自身を含む): 39322800

約数和(自身を除く): 19529816

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 197, 394, 661, 788, 1322, 1576, 2644, 3743, 5288, 7486, 12559, 14972, 25118, 29944, 50236, 100472, 130217, 260434, 520868, 1041736, 2474123, 4948246, 9896492, 19792984]

約数ペア:

[(1, 19792984), (2, 9896492), (4, 4948246), (8, 2474123), (19, 1041736), (38, 520868), (76, 260434), (152, 130217), (197, 100472), (394, 50236), (661, 29944), (788, 25118), (1322, 14972), (1576, 12559), (2644, 7486), (3743, 5288)]