20996845418

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{1997}}^1\times {\mathrm{309241}}^1$

素因数の和:311257

約数の個数: 16

約数和(自身を含む): 33364737864

約数和(自身を除く): 12367892446

約数列:

[1, 2, 17, 34, 1997, 3994, 33949, 67898, 309241, 618482, 5257097, 10514194, 617554277, 1235108554, 10498422709, 20996845418]

約数ペア:

[(1, 20996845418), (2, 10498422709), (17, 1235108554), (34, 617554277), (1997, 10514194), (3994, 5257097), (33949, 618482), (67898, 309241)]