21696016

素因数分解:

$2^4\times {\mathrm{787}}^1\times {\mathrm{1723}}^1$

素因数の和:2518

約数の個数: 20

約数和(自身を含む): 42113872

約数和(自身を除く): 20417856

約数列:

[1, 2, 4, 8, 16, 787, 1574, 1723, 3148, 3446, 6296, 6892, 12592, 13784, 27568, 1356001, 2712002, 5424004, 10848008, 21696016]

約数ペア:

[(1, 21696016), (2, 10848008), (4, 5424004), (8, 2712002), (16, 1356001), (787, 27568), (1574, 13784), (1723, 12592), (3148, 6892), (3446, 6296)]