15864208

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{1987}}^1$

素因数の和:2494

約数の個数: 20

約数和(自身を含む): 30814000

約数和(自身を除く): 14949792

約数列:

[1, 2, 4, 8, 16, 499, 998, 1987, 1996, 3974, 3992, 7948, 7984, 15896, 31792, 991513, 1983026, 3966052, 7932104, 15864208]

約数ペア:

[(1, 15864208), (2, 7932104), (4, 3966052), (8, 1983026), (16, 991513), (499, 31792), (998, 15896), (1987, 7984), (1996, 7948), (3974, 3992)]