21241256

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71761}}^1$

素因数の和:71804

約数の個数: 16

約数和(自身を含む): 40904340

約数和(自身を除く): 19663084

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71761, 143522, 287044, 574088, 2655157, 5310314, 10620628, 21241256]

約数ペア:

[(1, 21241256), (2, 10620628), (4, 5310314), (8, 2655157), (37, 574088), (74, 287044), (148, 143522), (296, 71761)]