21565264

素因数分解:

$2^4\times 7^1\times {\mathrm{192547}}^1$

素因数の和:192562

約数の個数: 20

約数和(自身を含む): 47751904

約数和(自身を除く): 26186640

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 192547, 385094, 770188, 1347829, 1540376, 2695658, 3080752, 5391316, 10782632, 21565264]

約数ペア:

[(1, 21565264), (2, 10782632), (4, 5391316), (7, 3080752), (8, 2695658), (14, 1540376), (16, 1347829), (28, 770188), (56, 385094), (112, 192547)]