2003984

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{499}}^1$

素因数の和:758

約数の個数: 20

約数和(自身を含む): 3906000

約数和(自身を除く): 1902016

約数列:

[1, 2, 4, 8, 16, 251, 499, 502, 998, 1004, 1996, 2008, 3992, 4016, 7984, 125249, 250498, 500996, 1001992, 2003984]

約数ペア:

[(1, 2003984), (2, 1001992), (4, 500996), (8, 250498), (16, 125249), (251, 7984), (499, 4016), (502, 3992), (998, 2008), (1004, 1996)]