39943994

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{1997}}^1$

素因数の和:2209

約数の個数: 16

約数和(自身を含む): 61210728

約数和(自身を除く): 21266734

約数列:

[1, 2, 73, 137, 146, 274, 1997, 3994, 10001, 20002, 145781, 273589, 291562, 547178, 19971997, 39943994]

約数ペア:

[(1, 39943994), (2, 19971997), (73, 547178), (137, 291562), (146, 273589), (274, 145781), (1997, 20002), (3994, 10001)]