9972016

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{1249}}^1$

素因数の和:1756

約数の個数: 20

約数和(自身を含む): 19375000

約数和(自身を除く): 9402984

約数列:

[1, 2, 4, 8, 16, 499, 998, 1249, 1996, 2498, 3992, 4996, 7984, 9992, 19984, 623251, 1246502, 2493004, 4986008, 9972016]

約数ペア:

[(1, 9972016), (2, 4986008), (4, 2493004), (8, 1246502), (16, 623251), (499, 19984), (998, 9992), (1249, 7984), (1996, 4996), (2498, 3992)]