21660592

素因数分解:

$2^4\times {\mathrm{499}}^1\times {\mathrm{2713}}^1$

素因数の和:3220

約数の個数: 20

約数和(自身を含む): 42067000

約数和(自身を除く): 20406408

約数列:

[1, 2, 4, 8, 16, 499, 998, 1996, 2713, 3992, 5426, 7984, 10852, 21704, 43408, 1353787, 2707574, 5415148, 10830296, 21660592]

約数ペア:

[(1, 21660592), (2, 10830296), (4, 5415148), (8, 2707574), (16, 1353787), (499, 43408), (998, 21704), (1996, 10852), (2713, 7984), (3992, 5426)]